1. Simplify (4x)(-2y). A. -8xy B. -8x - 8y C. -8 + xy D. 2xy Hint 2. If h(z) = 2z2 - 5z + 7, find h(3c). A. c + 7 B. 18c2 - 15c + 7 C. 18c2 - 3c + 7 D. 9c2 - 15c + 7 Hint 3. Choose the graph of the solution to the inequality 4(x + 3) < 3x + 10. A. B. C. D. Hint 4. Use substitution to solve the system of equations.5x + 5y = -302x - y = 15 A. (3, -9) B. no solution C. (21, 27) D. infinitely many solutions Hint 5. Simplify (4x2y) (2xy2z3)3. A. 32x5y7z9 B. 8x5y7z9 C. 24x5y7z9 D. 32x6y6z9 Hint 6. Factor 20a4b2 - 15ab + 30a2b A. 5(4a4b2 - 3ab + 10a2b) B. 5a2b(15a2b - 10 + 25a) C. a2b(20a2b - 15 + 30a) D. 5ab(4a3b - 3 + 6a) Hint 7. Use the quadratic formula to solve x2 + 4x + 5 = 0. A. -1, -4 B. C. 5 D. -1 Hint 8. Write an algebraic expression for the verbal expression. the sum of 4 and one half of the number x A. 4 - x B. 4 - ÷ x C. 4 + x D. 4 + ÷ x Hint 9. Identify the coordinates of point A. A. (6, 4) B. (1, 2) C. (2, 1) D. (5, 2) Hint 10. A bag contains 10 blue marbles, 7 white marbles, 6 red marbles, and 2 green marbles. What is the probability of randomly selecting a blue marble? A. B. C. D. Hint 11. Determine the coordinates of the x-intercept of 3x – 4y = 24. A. (0, 8) B. (8, 0) C. (0, -6) D. (-6, 0) Hint 12. Which equation describes the line that contains the points (-1, -8) and (-9, -21)? A. B. C. D. Hint 13. Write the slope-intercept form of an equation for the line that passes through (-8, -1) and is parallel to the graph of A. B. C. D. Hint 14. Solve –4 < -5x – 9 < 11. A. {x| -4 < x < 1} B. {x| -4 < x < -1} C. {x| -1 < x < 1} D. {x| -1 < x < 4} Hint 15. Graph x – y < 5. A. B. C. D. Hint 16. Factor x2 – 7x + 12. A. (x – 6)(x – 2) B. (x + 3)(x + 4) C. (x + 6)(x + 2) D. (x – 3)(x – 4) Hint 17. What are the next three terms of the geometric sequence 4, 10, 25,…? A. 100, 400, 1600 B. 62.5, 312.5, 1562.5 C. 62.5, 156.25, 390.625 D. 100, 250, 1000 Hint 18. Which of the following is not a necessary condition of all right triangles? A. a < b B. The largest angle is 90°. C. The square of the length of the hypotenuse is equal to the sum of the squares of the lengths of the legs. D. a2 + b2 = c2, where c is the length of the hypotenuse, and a and b are the lengths of the legs. Hint 19. Find the value of a if the distance between (4, 3) and (–1, a) is 13 units. A. a = 15 or –9 B. a = –15 only C. a = 15 only D. a = –15 or 9 Hint 20. Suppose a man that is 6 feet tall is standing near a street light that is 10 feet high. If the shadow that is cast extends 20 feet away from the light, how far away from the light is the man? A. 6 feet B. 12 feet C. 14 feet D. 8 feet Hint