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51. Solve the inequality: 3x + 4 > 10.
a) x > 2
b) x > 3
c) x < 2
d) x < 3
Answer: a) x > 2

52. Find the vertex of the parabola defined by the equation y = x^2 + 4x + 3.
a) (-2, -1)
b) (-2, 1)
c) (2, -1)
d) (2, 1)
Answer: a) (-2, -1)

53. Solve the system of equations:
2x + y = 7
3x - 4y = -2
a) x = 1, y = 5
b) x = 3, y = 1
c) x = -1, y = 5
d) x = -3, y = 1
Answer: a) x = 1, y = 5

54. What is the y-intercept of the line with equation y = 2x + 3?
a) 2
b) -2
c) 3
d) -3
Answer: c) 3

55. Simplify: (x^2)^3.
a) x^6
b) x^5
c) x^8
d) x^9
Answer: a) x^6

56. Solve for x: 2(3x + 4) = 5(x - 1).
a) x = -2
b) x = 2
c) x = 3
d) x = 4
Answer: a) x = -2

57. Expand the expression: (2x - 3)(x + 4).
a) 2x^2 + 5x - 12
b) 2x^2 + 5x + 12
c) 2x^2 - 5x + 12
d) 2x^2 - 5x - 12
Answer: a) 2x^2 + 5x - 12

58. Solve the equation: 4 - 3x = 5x + 7.
a) x = -3/8
b) x = -15/8
c) x = 3/8
d) x = 15/8
Answer: b) x = -15/8

59. Simplify: (3x^2)(2x^3)(-x^4).
a) -6x^9
b) -6x^8
c) -6x^7
d) 6x^9
Answer: a) -6x^9

60. Solve the inequality: 2x + 3 > 4x - 1.
a) x > 1/2
b) x > 3/2
c) x < 1/2
d) x < 3/2
Answer: a) x > 1/2