1. Write an inequality for the sentence three times a number is less than 45. A. 3x 45 B. 3x < 45 C. 3x > 45 D. 3 + x < 45 Hint 2. Use substitution to solve the system of equations given below.y = 2x5x - y = -24 A. (-8, -16) B. (-4, -8) C. no solution D. infinitely many solutions Hint 3. Select the figure that is not a reflection. A. M | M B. C. D. H | H Hint 4. Use the scatter plot to predict the mileage of an engine with 250 horsepower. A. 10 B. 12 C. 20 D. 25 Hint 5. Evaluate (3.2 × 10-5)(5.4 × 109). Express the result in scientific notation. A. 17.28 × 104 B. 1.728 × 105 C. 0.1728 × 106 D. 1.728 × 103 Hint 6. What is the slope of the line through the points A(-3, 4) and B(2, -1)? A. 1 B. -1 C. -3 D. Hint 7. What is the solution of the system of equations shown below? A. (1, -2) B. (0, -3) C. (0, 0) D. (3, 0) Hint 8. Find a number that when squared equals 484. A. None of these is correct B. 22 only C. 22 or -22 D. -22 only Hint 9. Find . A. B. C. 2 D. Hint 10. Find . A. B. C. D. Hint 11. Solve for y in terms of x.xy = 100 A. y = 100x B. x = C. y = D. y = Hint 12. What type of relationship does the equation have if its second differences are constant? A. quadratic B. constant C. cubic D. linear Hint 13. Find the table that does not represent an exponential equation. A. B. C. D. Hint 14. Toby needs to create a rectangular pen for his dog. He decides that the area of the pen will be 100 square feet with its length 2 feet longer than its width. As you find the width of the pen, which solution can be thrown away since the width cannot be negative? A. –8.32 B. –9.05 C. –11.05 D. –12.32 Hint 15. Select the figure that is a reflection. A. B. C. D. Hint 16. What is the scale factor of Figure A to Figure B? A. 4 B. 2 C. D. Hint 17. Rewrite the expression as a product of two binomials.x2 – x – 56 A. (x – 7)(x + 8) B. (x – 7)(x – 8) C. (x + 7)(x – 8) D. (x + 7)(x + 8) Hint 18. Factor the quadratic expression.x2 + 2x – 24 A. (x + 6)(x – 4) B. (x + 6)(x + 4) C. (x – 6)(x – 4) D. (x – 6)(x + 4) Hint 19. Find the solutions of the equation.–2(x – 7) 2 = –32 A. x = –3 and x = 11 B. x = –3 and x = –11 C. x = 3 and x = 11 D. x = 3 and x = –11 Hint 20. Solve the equation.x2 – 2x – 3 = 0 A. x = 5 and x = 0 B. x = 2 and x = –1 C. x = –5 and x = 0 D. x = 3 and x = –1 Hint