Cumulative Review Exercises 129 38. A high school student sells magazine subscriptions at $18 each. Write an expression that represents the total value sold for m magazines. For Exercises 39 and 40, evaluate the expressions for the given values of the variables. 39. x2 y2 for x 4 and y 1 40. 4m 3n for m 6 and n 4 Chapters 1–2 Cumulative Review Exercises 1. For the number 6,873,129 identify the place value of the underlined digit. 2. Write the following inequality in words: 130 244 3. Approximate the perimeter of the triangle by first rounding the numbers to the hundreds place. 589 ft For Exercises 4–7, add or subtract as indicated. 4. 73 41 5. 71 142 81 11062 6. 284 171 1842 393 7. For Exercises 8–13, multiply or divide as indicated. 8. 31 182 9. 386 122 10. 737 7 11. 12. 13. 14. Find the area of the rectangle. 28 m 5 m 0341 0 61 409 228 1001 235 490 ft 132 ft 15. Simplify the expressions. a. 04 0 b. 142 c. 42 d. 1422 16. Simplify the expression using the order of operations: 14 219 522 For Exercises 17 and 18, evaluate the expressions for x 4 and y 1. 17. x2 x y 18. 0x y 0 19. Torie is taking a natural herb in capsule form. She purchased four bottles containing 30 capsules each. The directions state that she can take either 2 or 3 capsules a day. a. How many days will the capsules last if Torie takes 3 a day? b. How many days will the capsules last if she takes only 2 a day? 20. The low temperatures for Fairbanks, Alaska, are given for a 1-week period. Find the average low temperature. 8F, 11F, 3F, 6F, 0F, 8F, 10F
miller_prealgebra_2e_ch1_3
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