Respuesta :

backseatdog

Answer:

B) 74

Step-by-step explanation:

f(x) = 3x + 5

g(x) = -4x + 7

(fog)x = 3(-4x+7) + 5

 = -12x + 21 + 5

= -12x + 26

(fog)(-4) = -12(-4) + 26 = 48 + 26 = 74