Respuesta :

Answer:

f(2)=18

Step-by-step explanation:

f(2)=3(2+4)

=(6+12)

=18

Answer:

your answer will be f(2)=10

Step-by-step explanation:

first what you want to do is substitute x=2, how do you know that? because of f(x) and f(2), like this

f(x)=3(x+4)

f(2)=3(2+4)

then you distribute 3 which will give you

f(2)= 6+4

and then you just add the rest

f(2)= 10

and that's how you get it, hope if helpful :)