1. Use ratios to convert 65 miles per hour to feet per second. A. 343.2 feet per second B. 44.32 feet per second C. 95.3 feet per second D. 57.2 feet per second Hint 2. If three coins are tossed, what is the probability that exactly two will show heads? A. B. C. D. Hint 3. Use cross products to determine which ratio forms a proportion with A. B. C. D. Hint 4. Seventeen is what percent of sixty-eight? A. 30 B. 32 C. 40 D. 25 Hint 5. The manager of a music store examined his CD sales by category for the past few months. The results are shown in the table. If he plans to order 250 new CDs, how many of them should be dance? A. 28 B. 11 C. 40 D. 23 Hint 6. Find the decimal equivalent of 23.5%. A. 0.235 B. 2.35 C. 23.5 D. 0.0235 Hint 7. Which number in the set {0.22, , 20%, 1 to 4} is the greatest? A. 1 to 4 B. 0.22 C. D. 20% Hint 8. What number is approximately 40% of 685? A. 320 B. 350 C. 280 D. 420 Hint 9. If the price of a car is \$18,000 one month and \$19,500 four months later, what is the percent of change? A. 7.7% increase B. 8.3% increase C. 8.3% decrease D. 7.7% decrease Hint 10. What is the percent of change from 32 ounces to 28 ounces? A. 14.3% increase B. 12.5% decrease C. 14.3% decrease D. 12.5% increase Hint 11. Express the ratio 16 days to 4 weeks as a fraction in simplest form. A. 4 B. C. D. Hint 12. Solve A. r = 155 B. r = 203 C. r = 179 D. r = 107 Hint 13. A train has a boxcar that is 30 feet long. A model of the train has a boxcar that is 8 inches long. What is the scale of the model? A. inch = 2 feet B. 2 inches = 8 feet C. 1 inch = 4 feet D. 4 inches = 15 feet Hint 14. Preston is designing a room that will be feet long and feet wide. He wants to create a scale drawing of the room using a scale of inch = feet. What should be the dimensions of the room on Preston's scale drawing? A. inches by inches B. inches by inches C. inches by 3 inches D. inches by inches Hint 15. Find of 99 mentally. A. 33 B. 297 C. 9 D. 11 Hint 16. If Dah-Chou invests \$2500.00 at an annual interest rate of 7.25%, how long will it take for him to earn \$1450 in interest? A. 6 years B. 8 years C. 10 years D. 4 years Hint 17. Find 16% of 230. A. 36.8 B. 368 C. 3680 D. 3.68 Hint 18. Suppose a number cube is rolled. What is the probability of rolling a number greater than 4? A. B. C. D. Hint