tolong ya kak beserta penyelesaiannya bsk mau di kumpul

A. g(x) = ¼(x - 3)
B.
g(27) = ¼(27-3)
g(27) = ¼(24)
g(27) = 6

g(-13) = ¼(-13-3)
g(-13) = ¼(-16)
g(-13) = -4

C.
g(a) = 9
9 = ¼(a - 3)
9 × 4 = a - 3
36 + 3 = a
a = 39