Solution Manual for Introductory Algebra, 6th Edition

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Chapter R Pretest Form A Name: Date: 1. List the factors of 24. 1. _______________ 2. Write the prime factorization of 750. 2. _______________ 3. Find the LCM of 6, 14, and 18. 3. _______________ 4. Write 5. Simplify 7 as an equivalent expression with a denominator of 60. 12 28 . 42 4. _______________ 5. _______________ Perform the indicated operations and simplify. 6. 3 4 โ‹… 8 7 6. _______________ 7. 1 3 + 6 5 7. _______________ 8. 2 3 รท 9 5 8. _______________ 9. 3 1 โˆ’ 5 3 9. _______________ 1 3 10. 4 + 6 3 8 10. ______________ 11. 8 โ‹… 9 3 4 11. ______________ Perform the indicated operations. 12. 27 + 0.4 + 2.07 12. ______________ 13. 19 โˆ’ 12.37 13. ______________ 14. 14.7 โ‹… 0.12 14. ______________ 15. 132.09 รท 3.7 15. ______________ Copyright ยฉ 2020 Pearson Education, Inc. T-1 Chapter R Pretest Form A (cont.) 16. Write 6.08 as a fraction. Do not simplify. 17. Write 5 as a decimal. 16 Name: 16. ______________ 17. ______________ 18. Round 79.7168 to the nearest hundredth. 18. ______________ 19. Write 23.1% as a decimal. 19. ______________ 20. Write 0.4 as a percent. 20. ______________ T-2 Copyright ยฉ 2020 Pearson Education, Inc. Chapter R Pretest Form B Name: Date: 1. List the factors of 18. 1. _______________ 2. Write the prime factorization of 120. 2. _______________ 3. Find the LCM of 10, 18, and 24. 3. _______________ 4. Write 5. Simplify 7 as an equivalent expression with a denominator of 64. 16 42 . 96 4. _______________ 5. _______________ Perform the indicated operations and simplify. 6. 2 9 โ‹… 3 24 6. _______________ 7. 1 2 + 5 3 7. _______________ 8. 4 5 รท 5 3 8. _______________ 9. 4 2 โˆ’ 5 25 9. _______________ 1 1 10. 10 + 14 2 4 10. ______________ 11. 15 โ‹… 3 2 5 11. ______________ Perform the indicated operations. 12. 45 + 0.6 + 3.07 12. ______________ 13. 24 โˆ’ 18.64 13. ______________ 14. 21.6 โ‹… 0.73 14. ______________ 15. 95.38 รท 3.8 15. ______________ Copyright ยฉ 2020 Pearson Education, Inc. T-3 Chapter R Pretest Form B (cont.) 16. Write 8.14 as a fraction. Do not simplify. 17. Write 7 as a decimal. 16 Name: 16. ______________ 17. ______________ 18. Round 26.6289 to the nearest hundredth. 18. ______________ 19. Write 90.7% as a decimal. 19. ______________ 20. Write 0.9 as a percent. 20. ______________ T-4 Copyright ยฉ 2020 Pearson Education, Inc. Chapter R Test Form A Name: Date: Fill in the blank: A fraction whose numerator is less than its denominator is called a(n) _____________________. improper fraction or proper fraction 1. _______________ 2. List the factors of 20. 2. _______________ 3. Write the prime factorization of 252. 3. _______________ 4. Find the LCM of 6, 8, and 60. 4. _______________ 5. Write 6. Simplify 8 . 28 6. _______________ 7. Simplify 28 . 35 7. _______________ 1. 3 as an equivalent expression with a denominator of 30. 5 5. _______________ Perform the indicated operations and simplify. 8. 2 1 + 3 4 8. _______________ 9. 3 7 โ‹… 5 9 9. _______________ 10. 2 1 รท4 5 10 10. ______________ 11. 3 1 โˆ’ 5 4 11. ______________ Perform the indicated operations. 12. 3 + 0.4 + 2.3 12. ______________ 13. 37.5 โˆ’ 7.25 13. ______________ 14. 2.16 โ‹… 0.08 14. ______________ 15. 0.368 รท 0.16 15. ______________ Copyright ยฉ 2020 Pearson Education, Inc. T-5 Chapter R Test Form A (cont.) Name: 16. Round 7.9374 to the nearest hundredth. 17. Write 16. ______________ 3 as a decimal. 8 17. ______________ 7 as a repeating decimal. Then approximate the result 9 to the nearest thousandth. 18. Write 18. ______________ 19. Write 2.35 as a fraction. Do not simplify. 19. ______________ 20. Write 15% as a decimal. 20. ______________ 21. Write 0.37 as a percent. 21. ______________ 22. 15 out of 27 students scored higher than 80 on an algebra test. What percent of students scored higher than 80? Round the answer to the nearest whole percent. 22. ______________ 23. The graph shows studentsโ€™ grades on a final exam for an algebra class. What percent of the students made a grade of A, B, or C? 24. Find the area of a triangle with base of 2 centimeters and 3 height of centimeters. 4 25. Find the area of a rectangle with length 20 24. ______________ 1 feet and 2 25. ______________ width 16 feet. T-6 23. ______________ Copyright ยฉ 2020 Pearson Education, Inc. Chapter R Test Form B Name: Date: Fill in the blank: A natural number greater than 1 whose only factors are 1 and itself is called a _____________________. prime number or composite number 1. _______________ 2. List the factors of 36. 2. _______________ 3. Write the prime factorization of 270. 3. _______________ 4. Find the LCM of 6, 8, and 12. 4. _______________ 5. Write 6. Simplify 5 . 15 6. _______________ 7. Simplify 8 . 52 7. _______________ 1. 5 as an equivalent expression with a denominator of 72. 6 5. _______________ Perform the indicated operations and simplify. 8. 2 1 + 3 5 8. _______________ 9. 3 5 โ‹… 7 12 9. _______________ 10. 2 3 รท3 3 5 10. ______________ 11. 4 2 โˆ’ 5 3 11. ______________ Perform the indicated operations. 12. 36 + 0.21 + 3.5 12. ______________ 13. 75.2 โˆ’ 8.95 13. ______________ 14. 2.16 โ‹… 3.4 14. ______________ 15. 2.34 รท 0.13 15. ______________ Copyright ยฉ 2020 Pearson Education, Inc. T-7 Chapter R Test Form B (cont.) Name: 16. Round 7.2985 to the nearest hundredth. 17. Write 16. ______________ 4 as a decimal. 5 17. ______________ 5 as a repeating decimal. Then approximate the result 6 to the nearest thousandth. 18. Write 18. ______________ 19. Write 2.28 as a fraction. Do not simplify. 19. ______________ 20. Write 5.2% as a decimal. 20. ______________ 21. Write 0.016 as a percent. 21. ______________ 22. Jillian made 18 out of 24 free throws throughout the basketball season. What percent of the free throws attempts did she make? Round the answer to the nearest whole percent. 22. ______________ 23. The graph shows how a studentโ€™s income is allocated. What fraction of the studentโ€™s income is spent on housing, transportation, and food? 24. Find the area of a triangle with base of 6 inches and 11 height of inches. 3 25. Find the area of a rectangle with width 5 24. ______________ 1 centimeters 4 and length 12 centimeters. T-8 23. ______________ Copyright ยฉ 2020 Pearson Education, Inc. 25. ______________ Chapter R Test Form C Name: Date: Fill in the blank: The product of a given number and any natural number is called a _____________________. factor or multiple 1. _______________ 2. List the factors of 44. 2. _______________ 3. Write the prime factorization of 180. 3. _______________ 4. Find the LCM of 4, 8, and 28. 4. _______________ 5. Write 6. Simplify 15 . 75 6. _______________ 7. Simplify 36 . 63 7. _______________ 1. 1 as an equivalent expression with a denominator of 18. 6 5. _______________ Perform the indicated operations and simplify. 8. 2 1 + 3 2 8. _______________ 9. 3 2 โ‹… 5 9 9. _______________ 10. 2 รท 12 5 10. ______________ 11. 4 1 โˆ’ 7 2 11. ______________ Perform the indicated operations. 12. 16 + 0.35 + 1.9 12. ______________ 13. 38.6 โˆ’ 4.93 13. ______________ 14. 6.2 โ‹… 0.013 14. ______________ 15. 0.391 รท 0.17 15. ______________ Copyright ยฉ 2020 Pearson Education, Inc. T-9 Chapter R Test Form C (cont.) Name: 16. Round 17.9583 to the nearest hundredth. 17. Write 5 as a decimal. 16 4 as a repeating decimal. Then approximate the result 9 to the nearest thousandth. 16. ______________ 17. ______________ 18. Write 18. ______________ 19. Write 1.56 as a fraction. Do not simplify. 19. ______________ 20. Write 3.2% as a decimal. 20. ______________ 21. Write 0.05 as a percent. 21. ______________ 22. Joel had 6 hits in 15 times at bat. What percent does this represent? Round the answer to the nearest whole percent. 22. ______________ 23. The graph shows how funds are spent at a particular school. What fraction of the funds are spent on faculty and staff salaries? 24. Find the area of a triangle with base of 16 centimeters and 3 height of centimeters. 8 25. Find the area of a rectangle with length 16 inches and 1 width 8 inches. 4 T-10 Copyright ยฉ 2020 Pearson Education, Inc. 23. ______________ 24. ______________ 25. ______________ Chapter R Test Form D Name: Date: Fill in the blank: Fractions that represent the same portion of a whole are called _____________________. simplified fractions or equivalent fractions 1. _______________ 2. List the factors of 50. 2. _______________ 3. Write the prime factorization of 126. 3. _______________ 4. Find the LCM of 18, 12, and 36. 4. _______________ 5. Write 6. Simplify 16 . 28 6. _______________ 7. Simplify 28 . 60 7. _______________ 1. 3 as an equivalent expression with a denominator of 20. 5 5. _______________ Perform the indicated operations and simplify. 8. 1 2 + 3 5 8. _______________ 9. 3 12 โ‹… 4 13 9. _______________ 2 1 10. 4 รท 6 3 2 10. ______________ 3 2 โˆ’ 8 9 11. ______________ 11. Perform the indicated operations. 12. 36 + 0.25 + 1.7 12. ______________ 13. 6.25 โˆ’ 0.735 13. ______________ 14. 2.51 โ‹… 0.36 14. ______________ 15. 1.058 รท 0.23 15. ______________ Copyright ยฉ 2020 Pearson Education, Inc. T-11 Chapter R Test Form D (cont.) Name: 16. Round 7.2913 to the nearest hundredth. 17. Write 16. ______________ 7 as a decimal. 8 17. ______________ 1 as a repeating decimal. Then approximate the result 3 to the nearest thousandth. 18. Write 18. ______________ 19. Write 1.35 as a fraction. Do not simplify. 19. ______________ 20. Write 21% as a decimal. 20. ______________ 21. Write 0.37 as a percent. 21. ______________ 22. 17 of 56 students drive more than 10 miles to school. What percent drive more than 10 miles to school? Round the answer to the nearest whole percent. 22. ______________ 23. The graph shows a breakdown of the costs for one semester of college. What fraction of the cost is for tuition and books? 24. Find the area of a triangle with base of 16 centimeters and height of 10 centimeters. 25. Find the area of a rectangle with length 8 24. ______________ 1 inches and 3 25. ______________ width 6 inches. T-12 23. ______________ Copyright ยฉ 2020 Pearson Education, Inc. Chapter R Test Form E 1. 2. 3. 4. To ____________ means to write as a product. (a) simplify (b) factor (c) multiply (d) reduce Give the prime factorization of 420. (a) 2 โ‹… 3 โ‹… 5 โ‹… 7 (b) 2 โ‹… 2 โ‹… 3 โ‹… 5 โ‹… 7 (c) 3 โ‹… 5 โ‹… 5 โ‹…11 (d) 3 โ‹… 5 โ‹… 11 Find the LCM of 10, 12, and 18. (a) 90 (b) 30 (c) 180 (d) 360 Which of the following is an expression equivalent to (a) 5. Name: Date: 18 21 (b) 36 49 (c) 6 ? 7 36 35 Which of the following fractions is the simplified form of (a) 7 8 (b) 6 7 (d) 8 9 42 ? 48 (c) 5 6 (d) 21 24 Perform the indicated operations and simplify. 6. 1 7 + 2 16 (a) 7. 4 9 (c) 7 32 (d) 15 16 6 13 (b) 5 48 (c) 1 8 (d) 1 12 12 57 (b) 6 19 (c) 4 19 (d) 56 57 (b) 17 5 (c) 3 2 5 (d) 6 17 2 6 โ‹… 3 19 (a) 9. (b) 7 1 โˆ’ 16 3 (a) 8. 8 18 2 4 2 รท6 5 5 (a) 6 Copyright ยฉ 2020 Pearson Education, Inc. T-13 Chapter R Test Form E (cont.) Name: Perform the indicated operations. 10. 31 + 0.37 + 4.5 (a) 7.97 (b) 35.87 (c) 76.37 (d) 31.82 11. 216.5 โˆ’ 68.18 (a) 148.48 (b) 148.42 (c) 148.32 (d) 138.32 12. 2.35 โ‹… 7.8 (a) 18.33 (b) 183.3 (c) 1833 (d) 1.833 13. 14.04 รท 0.27 (a) 5.2 (b) 52 (c) 5.02 (d) 0.52 (c) 14.64 (d) 15 (b) 0.38 (c) 3.75 (d) 0.375 1 as a repeating decimal. 6 (a) 1.6 (b) 0.016 (c) 0.16 (d) 0.16 14. Round 14.6371 to the nearest hundredth. (a) 14.637 (b) 14.63 15. Write 3 as a decimal. 8 (a) 3.8 16. Write 17. Write 2.40 as a fraction in lowest terms. (a) 12 5 (b) 24 100 (c) 6 25 (d) 24 10 18. Write 7% as a decimal. (a) 7 (b) 0.07 (c) 0.7 (d) 0.007 19. Write 0.3 as a percent. (a) 3% (c) 300% (d) 30% (b) 0.30% 20. A team won 16 games, lost 7 games, and tied 2 games. What percent of the games did they win? (a) 64% (b) 8% (c) 36% (d) 28% 21. Normal atmospheric pressure is 29.92 inches of mercury. How much above normal is a barometric pressure of 30.39 inches? (a) 60.31 inches (b) 1.47 inches (c) 0.47 inches (d) 11.47 inches T-14 Copyright ยฉ 2020 Pearson Education, Inc. Chapter R Test Form E (cont.) Name: The graph represents the budget of a particular family. Use the graph to answer questions 22 โˆ’23. 22. What fractional part of the budget represents the cost of housing? (a) 1 3 (b) 1 5 (c) 2 5 (d) 1 4 23. What two expenses account for over half of the budget? (a) food and housing (b) transportation and clothing (c) food and savings (d) housing and transportation 24. Find the area of a triangle with base of 12 feet and height of 7 (a) 42 1 sq ft 4 (b) 43 1 sq ft 2 25. Find the area of a rectangle with length of 10 (a) 20 sq in. (b) 15 sq in. 1 8 (c) 42 sq ft 1 feet. 4 (d) 43 3 sq ft 4 1 inches and width of 6 inches. 3 (c) 62 sq in. (d) 120 sq in. Copyright ยฉ 2020 Pearson Education, Inc. T-15 Chapter R Test Form F Name: Date: 1. A ________________ is a natural number greater than 1 that is divisible by a number other than 1 or itself. (a) percent (b) prime number (c) composite number (d) mixed number 2. Give the prime factorization of 210. (a) 2 โ‹… 3 โ‹… 5 โ‹… 7 (b) 2 โ‹… 2 โ‹… 3 โ‹… 5 โ‹… 7 (c) 3 โ‹… 5 โ‹… 5 โ‹…11 (d) 3 โ‹… 5 โ‹… 11 Find the LCM of 12, 15, and 21. (a) 3 (b) 420 (c) 210 (d) 140 3. 4. (a) 5. 10 ? 15 100 (c) 225 Which of the following is an expression equivalent to 12 17 (b) 8 13 (d) 20 30 5 9 (d) 7 9 Which of the following fractions is the simplified form of (a) 70 126 (b) 40 68 (c) 35 ? 63 Perform the indicated operations and simplify. 6. 1 5 + 3 8 (a) 7. 11 12 (c) 1 (d) 23 24 3 32 (b) 12 26 (c) 6 13 (d) 1 8 165 385 (b) 3 8 (c) 3 7 (d) 538 385 2 7 (b) 38 (c) 15 (d) 35 5 33 โ‹… 11 35 (a) 9. (b) 15 3 โˆ’ 32 8 (a) 8. 6 11 3 1 5 รท 7 7 (a) 5 Copyright ยฉ 2020 Pearson Education, Inc. 3 7 T-17 Chapter R Test Form F (cont.) Name: Perform the indicated operations. 10. 47.1 + 6.23 + 1.02 (a) 54.35 (b) 2121.4 (c) 63.53 (d) 11.96 11. 311.2 โˆ’ 102.9 (a) 211.7 (b) 209.3 (c) 208.3 (d) 218.3 12. 7.49 โ‹… 2.5 (a) 187.25 (b) 17.625 (c) 176.25 (d) 18.725 13. 31.488 รท 1.23 (a) 25.6 (b) 2.56 (c) 0.256 (d) 256 (c) 267.131 (d) 267.14 (b) 0.616 (c) 0.375 (d) 37.5 2 as a repeating decimal. 3 (a) 0.16 (b) 0.67 (c) 0.06 (d) 0.6 14. Round 267.1307 to the nearest hundredth. (a) 270 (b) 267.13 15. Write 6 as a decimal. 16 (a) 6.16 16. Write 17. Write 0.24 as a fraction in lowest terms. 24 100 (d) 18. Write 9% as a decimal. (a) 0.09 (b) 0.9 (c) 0.009 (d) 9 19. Write 0.45 as a percent. (a) 0.45% (b) 4.5% (c) 45% (d) 450% (a) 12 50 (b) 24 1000 (c) 6 25 20. A team won 19 games, lost 4 games, and tied 2 games. What percent of the games did they win? (a) 16% (b) 76% (c) 24% (d) 8% 21. Normal atmospheric pressure is 29.92 inches of mercury. How much below normal is a barometric pressure of 28.17 inches? (a) 1.75 inches (b) 0.75 inches (c) 0.85 inches (d) 1.85 inches T-18 Copyright ยฉ 2020 Pearson Education, Inc. Chapter R Test Form F (cont.) Name: The graph represents the annual operating expenses of a particular company in June. Use the graph to answer questions 22โˆ’23. 22. What single expense accounts for over half of the budget? (a) rent (b) salaries (c) depreciation (d) none 23. General expenses and rent combined make up what fractional part of the budget? (a) 1 4 (b) 1 3 (c) 1 5 (d) 1 10 24. Find the area of a triangle with base of 16 inches and height of 10 inches. (a) 160 sq in. (b) 40 sq in. (c) 150 sq in. (d) 80 sq in. 25. Find the area of a rectangle with length of 8 centimeters and width of 5 centimeters. (a) 20 sq cm (b) 40 sq cm (c) 13 sq cm (d) 80 sq cm Copyright ยฉ 2020 Pearson Education, Inc. T-19 Chapter 1 Pretest Form A 1. 1 ๏ƒฌ ๏ƒผ Given the set ๏ƒญ โˆ’6, โˆ’ 4, , 0, 2, 6, 11.5, 11, 2ฯ€ ๏ƒฝ , list the 3 ๏ƒฎ ๏ƒพ numbers that are integers. Name: Date: 1. _______________ Insert , or = to form a true statement. 2. โˆ’4 ______ 0 2. _______________ 3. โˆ’2 ______ โˆ’15 3. _______________ Find the absolute value. 4. 14 4. _______________ 5. โˆ’2.7 5. _______________ 6. Write the following phrase as an algebraic expression. Five times the sum of a number and 4 6. _______________ Evaluate the following. 7. ( โˆ’3) 8. โˆ’53 9. Find the opposite of โˆ’ 5 . 12 9. _______________ 10. Find the reciprocal of 6 . 7 10. ______________ 2 7. _______________ 8. _______________ Perform the indicated operations and simplify. 11. 5 + 7 โ‹… 22 11. ______________ 12. โˆ’8 + 15 12. ______________ 13. โˆ’5 โˆ’ 12 13. ______________ Copyright ยฉ 2020 Pearson Education, Inc. T-21 Chapter 1 Pretest Form A (cont.) Name: ( โˆ’6 )( โˆ’8) 14. ______________ 15. โˆ’3.5 + 0.02 15. ______________ โˆ’3 โˆ’ 52 16. 7 ( โˆ’1) 16. ______________ 17. Evaluate 3xy โˆ’ x 2 when x = โˆ’4 and y = โˆ’2. 17. ______________ 14. Decide whether the given number is a solution to the equation. 18. x โˆ’ 15 = 8; x = 7 18. ______________ x + 3 = 8; x = 20 4 19. ______________ 19. 20. In a series of plays, a football team gains 5 yards, loses 7 yards, and then loses 2 yards. What is their total gain or loss of yardage? 20. ______________ 21. Use the Commutative Property of Addition to rewrite the following statement. 5 y + 4 21. ______________ 22. Use the Distributive Property to write the expression without parentheses. 7 ( 2 + 3t ) 22. ______________ 23. Identify the property illustrated by the expression. 6 + (2 + 4) = (6 + 2) + 4 23. ______________ Simplify each expression. 24. 3x โˆ’ 5 โˆ’ 2 x โˆ’ 3 24. ______________ 25. โˆ’2 ( x + 1) + 3 ( 2 โˆ’ 4 x ) 25. ______________ T-22 Copyright ยฉ 2020 Pearson Education, Inc. Chapter 1 Pretest Form B 1. Name: Date: 1 ๏ƒฌ ๏ƒผ Given the set ๏ƒญ โˆ’6, โˆ’ 4, , 0, 2, 6, 11.5, 11, 2ฯ€ ๏ƒฝ , list the 3 ๏ƒฎ ๏ƒพ numbers that are natural numbers. 1. _______________ Insert , or = to form a true statement. 2. 0 ______ โˆ’7 2. _______________ 3. โˆ’12 ______ โˆ’3 3. _______________ Find the absolute value. 4. 12 4. _______________ 5. โˆ’1.8 5. _______________ 6. Write the following phrase as an algebraic expression. 12 less than 3 times a number 6. _______________ Evaluate the following. 7. 25 8. โˆ’7 2 8. _______________ 9. 7 Find the opposite of โˆ’ . 8 9. _______________ 4 . 9 10. ______________ 10. Find the reciprocal of ` 7. _______________ Perform the indicated operations and simplify. 11. 4 + 6 โ‹… 22 11. ______________ 12. โˆ’6 + ( โˆ’8) 12. ______________ 13. โˆ’3 โˆ’ ( โˆ’7 ) 13. ______________ Copyright ยฉ 2020 Pearson Education, Inc. T-23 Chapter 1 Pretest Form B (cont.) Name: ( โˆ’7 )( 6) 14. ______________ 15. โˆ’3.5 + 0 โˆ’ 2 15. ______________ โˆ’4 โˆ’ 42 16. 2 ( โˆ’5) 16. ______________ 17. Evaluate 5 xy โˆ’ x 2 when x = โˆ’5 and y = โˆ’2. 17. ______________ 14. Decide whether the given number is a solution to the equation. 18. x โˆ’ 20 = โˆ’4; x = 16 18. ______________ x โˆ’ 6 = 3; x = 15 5 19. ______________ 19. 20. A submarine is 150 feet below the sea level when it dives 20 feet and then rises 40 feet. What is its new position? 20. ______________ 21. Use the Commutative Property of Addition to rewrite the following statement. 7 y + 9 21. ______________ 22. Use the Distributive Property to write the expression without parentheses. 6 ( 4 + 5t ) 22. ______________ 23. Identify the property illustrated by the expression. ( x + 0) + 4 = x + 4 23. ______________ Simplify each expression. 24. 3x โˆ’ 1 โˆ’ x + 6 24. ______________ 25. 4 ( x โˆ’ 3) โˆ’ 2 (1 โˆ’ 3x ) 25. ______________ T-24 Copyright ยฉ 2020 Pearson Education, Inc. Chapter 1 Test Form A Name: Date: Translate each statement into symbols. Let x represent the unknown number if needed. 1. Negative eight is greater than negative twelve. 1. _______________ 2. Three times a number added to eight is fourteen. 2. _______________ 3. Tell which set or sets of numbers โˆ’3 belongs to: natural numbers, whole numbers, integers, rational numbers, irrational numbers, real numbers. 3. _______________ Insert , or = to make a true statement: โˆ’12 ______ 6 4. _______________ 4. Simplify each expression. 5. โˆ’12 + ( โˆ’3) 5. _______________ 6. 12 โˆ’ 19 6. _______________ 7. ( โˆ’6 )( โˆ’2 ) 7. _______________ 8. ( โˆ’1)( โˆ’2 )( โˆ’3)( โˆ’4 ) 8. _______________ 9. 3 1 โˆ’ รท 4 8 9. _______________ 10. 22 6 10. ______________ 11. โˆ’2 โˆ’ 3 ( 4 โˆ’ 6 ) 11. ______________ 2 + โˆ’6 8 โˆ’ 24 12. ______________ 13. 12 โˆ’ 22 โˆ’ 8 13. ______________ โˆ’15 + 2 โ‹… 5 2+3 14. ______________ 12. 14. Copyright ยฉ 2020 Pearson Education, Inc. T-25

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