Respuesta :

You’re answer is 21


7(3)= 21 I hope I’m right :))

Answer:

f (3) = 21

Step-by-step explanation:

To answer, we know that x in f (x) equals 3, so in f (x) = 7x, we simply substitute x with 3:

f (3) = 7 (3)

Now multiply:

f (3) = 21

21 is your answer

Hope this helps :)