<p> Review of Chapters 1, 2, and 3</p><p>Classify as true or false. Simplify:</p><p>1. 2.3 = 2.31 2. -3 > -3 3. -10 - 2.68</p><p>Simplify.</p><p>4. 12  4 + 15  3 5. 7  23 6. 2 - (33 + 16  (-2)3) 7. 3 - 2 - 7 + 4 </p><p>8. Evaluate: -3 - x2 + 12x, for x=5</p><p>9. The area of a parallelogram with base b and height h is bh. Find the area of the parallelogram when the height is 3.5cm and the base is 8cm.</p><p>10. Use a commutative law to write an equivalent expression. x + 3</p><p>11. Use an associative law to write an equivalent expression. (3p)q</p><p>12. 4(2x + 7)</p><p>13. Combine like terms. 4m + 10 - 5m + 12</p><p>Remove parentheses and simplify. 14. 2x + 5y - 7(x - y)</p><p>15. Determine whether 4 is a solution of the given equation: 3x - 2 = 10</p><p>SOLVE: 2 1 16. -  p  17. 4x + 3 = -1 18. 12 = 5y – 18 3 6</p><p>19. 2x = 5 + 7x 20. x + 0.45 = 2.6x 21. 2(5 – m) = 5(6 + m)</p><p> p  r 22. 2 + 3(4 + c) = 1 – 5(6 – c) 23. A = lw, for w 24. q = , for r 2</p><p>25. ax + by = c, for a 26. 4b + 7  2 + 5b 27. (x + 5)  8 – 3x</p><p>28. Five times some number is 10 less than the number. What is the number?</p><p>29. The sum of two consecutive even integers is 34. Find the numbers.</p><p>30. The perimeter of a rectangle is 28 cm. The width is 5 cm less than the length. Find the width and the length. 31. The second angle of a triangle is one third as large as the first. The third angle is 5  more than the first. Find the measure of each angle.</p><p>32. A can of tomatoes is on sale at 20% off for $.64. What is the normal selling price of the tomatoes?</p><p>1 33. Graph: y = - x + 3 34. Find the slope of x = -5 2</p><p>35. Hooke's Law for an elastic spring states that the distance a spring stretches varies directly as the force applied. Suppose a force of 9 lb stretches a certain spring 15 in. How much will a force of 30 lb stretch this spring?</p><p>36. It takes 4 hours for 12 people to build a woodshed. How long will it take 3 people to complete the same job?</p><p>4 12 4 3 4 12 4 3 A.  B.  C.  D.  3 T 12 T T 3 T 12</p><p>Answer Sheet: 13. -m+22 c  by 25. a= x 1. False 14. -5x + 12y 26. {b b<5} 2. True 15. yes 27. {xx<3/4} 3. -12.68 16. 5/6 28. 5x = x - 10 ;-5/2 4. 8 17. -1 29. x + x + 2 = 34 5. 56 18. 6 16,18 6. -23 19. -1 30. 2x + 2(x - 5) = 28 7. 2 20. 9/32 or .281 4.5 cm, 9.5 cm 8. 32 21. -20/7 1 9. 28cm2 22. 43/2 31. x  x  x  5  180 3 10. 3+x A 23. w= 750, 25º , 300 l 11. 3(pq) 32. .8x = .64 ; $.80 24. r = -2q + p 12. 8x+28 </p><p>34. Undefined 35. 50 in. 36. D </p>