1. What is the value of 9 - [12 + (15 ÷ 3)]? A. 2 B. -8 C. 26 D. 0 Hint 2. Name the additive inverse of A. B. C. D. Hint 3. Choose the graph that is not a function. A. B. C. D. Hint 4. State the number of solutions to the system of equations graphed below. A. 0 B. 1 C. infinitely many D. 2 Hint 5. The system of equations on the graph shown is A. consistent. B. inconsistent. C. consistent and dependent. D. consistent and independent. Hint 6. The equations y = -0.38x + 56.6 and y = 0.38x + 43.4 represent the percent of men and women, respectively, receiving bachelor's degrees, where x is the number of years since 1968. In approximately what year did the same percent of men and women receive bachelor's degrees? A. 1980 B. 1995 C. 1985 D. 1990 Hint 7. Find the value of 63. A. 216 B. 36 C. 18 D. 729 Hint 8. A baker earns 15¢ profit per glazed doughnut g, and 40¢ profit per jelly doughnut j. If a customer wants to buy no more than a dozen doughnuts and wants to try at least one of each kind, what is the maximum profit the baker can earn? A. \$1.80 B. \$4.80 C. \$4.55 D. \$3.30 Hint 9. Solve the system of equations. A. (7, -2, 1) B. (10, -1, 11) C. (13, 0, -4) D. (1, -4, 6) Hint 10. If , find N -1. A. B. C. D. Hint 11. Given that the inverse of the coefficient matrix is , solve the matrix equation . A. (4, 3) B. (-4, 3) C. (2, 4) D. (-2, 3) Hint 12. Identify the multiplicative inverse of 2.5. A. 0.4 B. 5.2 C. 0.5 D. 0.25 Hint 13. Solve the inequality –13 < -5x – 3 < 17. A. {x | -4 < x < 2} B. {x | 2 < x < -4} C. {x | -2 < x < 4} D. {x | 4 > x > -2} Hint 14. A phone company charges for service as follows: they charge a certain amount for a visit, and then they charge a certain amount per hour after that. If a three-hour service visit costs \$220, and a job that takes an hour and a half costs \$145, how much is the cost of a visit before the amount of time spent is factored in? A. \$70 B. \$50 C. \$25 D. \$217 Hint 15. A line of fit is drawn on a scatter plot showing the number of pets owned by automobile owners and the number of miles driven each month. What would probably be the best description of the slope of this line? A. zero B. negative C. positive D. undefined Hint 16. Which of the following systems of equations is inconsistent? A. 4y – x = 12 3y – 2x = 1 B. y = 7x – 2 y = –2x – 5 C. 3y + 2x = 13 6y + 4x = 3 D. y = 2x – 3 y = –3x + 4 Hint 17. If and find 3A + 2B. A. B. C. D. Hint 18. Find the product of A. B. C. D. Hint 19. Which of the following properties does not hold for matrices? A. left distributive property B. commutative property of multiplication C. associative property of multiplication D. right distributive property Hint 20. Evaluate A. –654 B. 111 C. –51 D. 37 Hint