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24, Multiply. Write your answer in lowest terms. 6y 5 25. Simplify 3pq^2 21r^3s 6q^4 7r^4s^4 p r s^3 6 q^2 26. Add. Write your answer in lowest terms. -3u+7y 7u 27. Subtract and simplify: 2x^2 – x + 2 x^2-x 28. Simplify. w+4 2w+2 29. Solve for : . Simplify your answer as much as possible -1/2 30. Solve for . (If there is more than one solution, separate them with commas.) -3/2, -1/3 31. Solve the following proportion for Round your answer to the nearest tenth 5.2 . 32. Melissa drove miles using gallons of gas. At this rate, how many gallons of gas would she need to drive miles? 15.6 33. Rewrite the following in simplified radical form. Assume that all variables represent positive real numbers 3z^4 √2 34. Simplify the following expression as much as possible: Assume that all variables represent positive real numbers. 26xz^2 √7z 35. Simplify. Assume that all variables represent positive real numbers 4 y^3 z^3 36. Rationalize the denominator and simplify. √22 11 37. Solve for , where is a real number. (If there is more than one solution, separate them with commas.) 69 38. Solve for , where is a real number. (If there is more than one solution, separate them with commas.) 5/3 39. For the following right triangle, find the side length the nearest tenth 16 diagonal line X is the left line 10 is the bottom Assuming that 16 is the longest side! X = 12.5 40. -4 What is the value of ? . Round your answer to 41. Write the following in simplified radical form. 42. Find the roots of the quadratic equation: . (If there is more than one root, separate them with commas.) 3, 5 43. Solve the equation for . (If there is more than one solution, separate them with commas.) -1 44. Solve , where is a real number. Simplify your answer as much as possible. If there is more than one solution, separate them with commas. 6-5√2, 6+5√2 45. Use the quadratic formula to solve for . (If there is more than one solution, separate them with commas.) 46. Simplify. 16