1. Which statement illustrates the associative property of multiplication? A. (2x)y = 2xy B. (2x)y = y(2x) C. (2x)y = (x · 2)y D. (2x)y = 2(xy) Hint 2. Solve 2x = -10. A. x = 8 B. x = -12 C. x = 5 D. x = -5 Hint 3. An antique car was purchased for \$7400 and is now worth \$10,600. What is the approximate percent of change? A. 30.19% B. 43.24% C. 50% D. 69.81% Hint 4. Find the interquartile range of {61, 65, 65 ,66, 72, 75, 77, 79, 81, 85, 89, 92, 99}. A. 65.5 B. 77 C. 21.5 D. 87 Hint 5. Write the standard form of an equation of the line that passes through (3, 5) and has a slope of . A. 3x + 4y = 29 B. C. D. undefined Hint 6. Choose the slope-intercept form of the equation of the line that passes through (-2, 4) and is perpendicular to the graph of 2x + y = -20. A. y = -2x B. y = 2x + 8 C. D. Hint 7. Choose the graph of the solution to the inequality 4(x + 3) < 3x + 10. A. B. C. D. Hint 8. Graph the system of equations to determine whether it has no solution, infinitely many solutions, or one solution. If the system has one solution, name it. A. infinitely many solutions B. one solution at C. no solution D. one solution at Hint 9. Factor r4 – 81. A. (r + 3)2(r + 3)2 B. (r2 + 9)(r + 3)(r - 3) C. (r2 + 9)(r2 + 9) D. prime Hint 10. State the excluded values of a and b in the expression . A. B. C. D. Hint 11. Express in simplest form. A. B. C. 2 D. Hint 12. Simplify . A. 4 B. C. D. 16 Hint 13. Make a table showing the cost of buying 1 to 5 CDs if CDs cost \$12 each. A. B. C. D. Hint 14. Find the odds of rolling a number greater than or equal to four on a number cube. A. B. C. D. Hint 15. Find h(-2.5) if h(z) = z² + 3.5z – 2.75. A. -17.75 B. 0.25 C. 12.25 D. -5.25 Hint 16. Which table contains data whose distribution would be skewed left? A. B. C. D. Hint 17. A sociology teacher asked her students how many siblings they have. The results of the survey are shown in the table. Find the probability that a randomly chosen student has one sibling. A. B. C. D. Hint 18. Factor 4x2 – 14x – 8. A. 2(2x + 1)(x – 4) B. (2x + 1)(x – 2) C. 2(2x + 1)(x – 2) D. (2x + 1)(x – 4) Hint 19. Which method of solving quadratic equations is best suited for the equation x2 – 18x = 0 A. factoring B. completing the square C. quadratic formula D. graphing Hint 20. Vince ran a marathon in 3 hours. What was his speed in feet per second? (a marathon is 26.2 miles) A. 38.4 ft/sec B. 768.5 ft/sec C. 16.7 ft/sec D. 12.8 ft/sec Hint