Multiple choice. Please help.

54. Find f (t - 6) if f(x) = -2x2 + 9x + 1. A. -2t2 + 33t + 125 C. -2t2 + 33t - 125 B. -125 D. -2t2 - 33t - 125 55. Let f(x) = x2 + 6 and g(x) = , Find (g . f) (-7). A. 55 B. 384 C 295 49 D. 63 56. Find the inverse of f (x) = 5x-11 10 A. f-1(x) = 5x-10 C. f-1(x) = 10x-11 11 5 B. f-1(x) = 5x+10 10x+11 11 D. f- 1 (x) = 5 57. Divide using the synthetic division: (x4 - 18x3 + 44x2 + 55x - 28) + (x -4) A. x3 + 10x2 + 68x + 41 C. x3 - 18x2 + 10x + 41 B. x3 - 14x2 - 12x + 7 D. x3 - 12x2 + 7x - 14 58. What is the remainder in the division (6x3 - x2 + 4x -9) = (2x -3)? A. 15 C. - 3 B. 3 D. -15