Respuesta :

Answer:

B. 3x² -17

Step-by-step explanation:

f(x)= 3x+1

g(x)= x² -6

(f °g)(x) =f(g(x)) so plug in in f for variable x²-6

(f °g)(x) = 3(x² -6) +1 =3x² -18 +1 = 3x² -17