1. Write an equation to represent ''x increased by 50 is 72.'' A. 50x B. x - 50 C. 50 - x D. x + 50 Hint 2. Write an expression to represent ''five times as much as I paid yesterday.'' A. 5c B. 5 + c C. 5 - c D. Hint 3. Write an integer to describe a city 325 feet above sea level. A. +325 and |-325| B. +325 C. -325 D. +325 and -325 Hint 4. Choose a reason why the statement -6 > |-2| is false. A. |-2| is negative. B. -6 is greater than -2. C. |-2| is positive. D. -2 is smaller than -6. Hint 5. Order the integers {-11, 5, -13, -2, 12} from greatest to least. A. {-11, -13, -2, 5, 12} B. {-13, 12, -11, 5, -2} C. {12, 5, -2, -11, -13} D. {-13, -11, -2, 5, 12} Hint 6. Two golfers ended their game scoring 2 above par and 5 under par. Write two inequalities to represent their scores. A. 2 < 5 and -5 < 2 B. 2 < 5 and 5 > 2 C. 2 < -5 and 5 > 2 D. 2 > -5 and -5 < 2 Hint 7. Solve (-2)(5) = r. A. -10 B. 7 C. 10 D. -3 Hint 8. Evaluate the expression ab ÷ c if a = -2, b = -4, and c = 4. A. -1 B. -2 C. 4 D. 2 Hint 9. Solve 256 = 16w. A. 4096 B. 256 C. 1 D. 16 Hint 10. Four friends went to the movies. The total cost of the tickets was \$34.00. Use the equation 4c = 34 to find the cost of one movie ticket. A. 8.25 B. 8 C. 8.5 D. 8.75 Hint 11. Write an equation to represent ''the difference of a number and 10 is 7.'' A. x – 10 B. 10 – x C. x + 10 D. Hint 12. An elevator started on the 10th floor. It rose 2 floors, dropped 7 floors, and then rose 1 floor. What floor did the elevator end on? A. Basement (-1st floor) B. 20th floor C. 4th floor D. 6th floor Hint 13. A hiker begins on top of a mountain that stands 12,500 feet above sea level. He walks down to the valley that is 250 feet below sea level. What is his change in elevation? A. -12,250 feet B. 12,750 feet C. -12,750 feet D. 12,250 feet Hint 14. Solve c – (–20) = 15. A. c = 5 B. c = –35 C. c = –5 D. c = 35 Hint 15. Which is a counterexample for the following statement?The difference of two odd numbers is an odd number. A. 15 – 4 = 11 B. 7 + 9 = 16 C. 12 – 5 = 7 D. 15 - 7 = 8 Hint 16. Evaluate -4p – r if p = -6 and r = 3. A. -21 B. 21 C. 27 D. -27 Hint 17. Connor is 7 inches taller than his brother Alex. If Connor is 45 inches tall, which equation could be used to determine Alex’s height? Let a represent Alex’s height. A. a + 7 = 45 B. 45 + a = 7 C. a – 7 = 45 D. 7 – a = 45 Hint 18. An African elephant calf weighs about 250 pounds at birth. A male adult elephant weighs 12,000 pounds. Which equation can be used to determine the number of pounds the elephant gains in his lifetime? Let p represent the number of pounds gained. A. 12,000 + p = 250 B. 250 + p = 12,000 C. 250p = 12,000 D. 250 – p = 12,000 Hint 19. Solve -16m = -128. A. -8 B. -2,048 C. 2,048 D. 8 Hint 20. Solve -23t = 92. A. -2,116 B. 2,116 C. 4 D. -4 Hint