1. Solve a = -12 - 7. A. 5 B. -19 C. 19 D. -5 Hint 2. Find the value for t in t = 41 - (-19). A. 22 B. -60 C. -22 D. 60 Hint 3. Estimate 33% of 32. A. 11 B. 9 C. 15 D. 13 Hint 4. Express 0.0000421 in scientific notation. A. 4.21 × 10-4 B. 4.21 × 10-6 C. 4.21 × 10-9 D. 4.21 × 10-5 Hint 5. Subtract from -10. A. B. C. D. Hint 6. Martha deposited \$400 in a savings account. The account earns 7.15% interest annually. If she does not deposit or withdraw any money for 30 months, how much will she have in her account. A. \$471.50 B. \$71.50 C. \$210 D. \$610 Hint 7. Find . A. -15 B. 14 C. -14 D. 15 Hint 8. Write an equation to represent ''the number of runners on the track team increased by 15 for a total of 45.'' A. 15 – n B. n – 15 C. 15n D. n + 15 Hint 9. Estimate 25% of 39. A. 3 B. 25 C. 12 D. 10 Hint 10. Solve 6.1z = 94.55. A. z = 15.06 B. z = 15.65 C. z = 15.25 D. z = 15.5 Hint 11. The scale on a map reads inch = 10 miles. How far apart are two cities if their map distance is 3 inches? A. 60 miles B. 55 miles C. 70 miles D. 65 miles Hint 12. If 1 yard is equal to 36 inches, then 15 yards equals c inches. Solve for c. A. c = 540 inches B. c = 525 inches C. c = 570 inches D. c = 555 inches Hint 13. A tower cast a 30-foot shadow. At the same time, a person who is 6 feet tall casts a 4-foot shadow. How tall is the tower? A. 34 feet B. 48 feet C. 47 feet D. 18 feet Hint 14. A staff's shadow is 4 feet long and a tree's shadow is 7 feet long. If the tree is 5 feet tall, how tall is the staff? A. 9 feet B. 3 feet C. 2 feet D. 5 feet Hint 15. On a blueprint with a scale of inch = 1 foot, what are the dimensions of a room whose actual dimensions are 10 feet by 12 feet? A. 4 inches by 5 inches B. 20 inches by 24 inches C. inch by inch D. 5 inches by 6 inches Hint 16. A projector displays an image from 35-millimeter film onto a screen that is 10 meters wide. What is the scale factor? A. B. C. D. Hint 17. Which statement is false? A. The sum of two odd numbers is an even number. B. The product of two odd numbers is an odd number. C. The product of an even number and an odd number is an odd number. D. The sum of an even number and an odd number is an odd number. Hint 18. Evaluate -4p – r if p = -6 and r = 3. A. 21 B. 27 C. -27 D. -21 Hint 19. 441 is 63% of what number? A. 620 B. 700 C. 277.83 D. 540 Hint 20. 34.8 is 60% of what number? A. 47 B. 62 C. 58 D. 20.88 Hint