Respuesta :

Answer:

Assuming that x2 is x^2, or x squared, than the answer is D, 16

Step-by-step explanation:

f(3)=3^2+7

f(3)=9+7

f(3)=16

I hope this helps!

Answer: D)16

Step-by-step explanation:

F(x)=3^2+7

      =9+7=16