assalamu'alaikum.. tolong bantu yaa kakak kakak

f(x) = 3x + 2
g(x) = 2x - 1

A. fog(x)
= f(g(x))
= 3(2x - 1) + 2
= 6x - 3 + 2
= 6x - 1

B. gof(x)
= g(f(x))
= 2(3x + 2) - 1
= 6x + 4 - 1
= 6x + 3

C. fog(2)
fog(x) = 6x - 1
fog(2) = 6(2) - 1
fog(2) = 12 - 1
fog(2) = 11

D. gof(3)
gof(x) = 6x + 3
gof(3) = 6(3) + 3
gof(3) = 18 + 3
gof(3) = 21