Hello!
As we are not given an x-value, we are just going to have our answer be written in terms of x.
We want to find the f of g(x). As you can see, the g(x)=x+9. Let's plug this value into the function f to find our answer.
f(g(x))=5(x+9)+7
f(g(x))=5x+52
Therefore, our answer would be f(g(x))= 5x+52
I hope this helps!
