1. For any rational number and with b > 0 and d > 0, if then _____. A. ad + bc = 1 B. ad < bc C. ad > bc D. ad = bc Hint 2. Write and in order from least to greatest. A. B. C. D. Hint 3. The heights, in feet, of the eight highest waterfalls in the world are 3281, 3000, 2000, 1904, 1650, 1612, 1430, and 1384. Find the range of this data set. A. 1777 B. 1897 C. 948.5 D. 2033 Hint 4. Ten test scores from Mrs. McDaniel's mathematics class are 100, 95, 93, 86, 82, 80, 78, 77, 75, and 75. She calculates the mean, median, and mode of the scores. An eleventh student takes the test with a score of 62. Mrs. McDaniel recalculates the mean, median, and mode of the test scores. Which measure changes the most when the eleventh score is included? A. mean B. median C. mode D. The mean, median, and mode change equally. Hint 5. A. B. C. D. Hint 6. A. B. C. D. Hint 7. The length of the Nile river is 4180 miles. That is 268 miles more than the Amazon river. If l is the length of the Amazon river, which equation represents this situation? A. l + 268 = 4180 B. l - 268 = 4180 C. l = 4180 + 268 D. l + (-268) = 4180 Hint 8. The absolute value of a number can be thought of as ______. A. the distance of the number from zero on a number line B. its product with -1 C. its negative value D. the opposite of the number Hint 9. Find the sum . A. B. C. D. Hint 10. Find 4.5 + (-2.9) + 3.2. A. -4.8 B. 10.6 C. -10.6 D. 4.8 Hint 11. Carmen and her friend Marva have a total of 15 pets. If Marva has 12 pets, how many pets does Carmen have? A. 31 B. 5 C. 3 D. 27 Hint 12. Which equation below is not an example of the Subtraction Property of Equality? A. If x = 0, then x – 4 = 0 – 4. B. If x = 2, then x = 3 – 1. C. If x = -5, then x – 2 = -5 – 2. D. If x = 3, then x – 4 = 3 – 4. Hint 13. Solve the equation g + 14 = -23. A. -37 B. 9 C. -9 D. 37 Hint 14. Solve |c + 3| – 4 = -2 A. -1 or 5 B. no solution C. 1 or 5 D. -1 or -5 Hint