Answer :
We can see that (f o g)(2) = f(g(2)) = 12, the correct option is A.
How to find the value of the sum?
We want to find the value of (f o g)(2), this is just f evaluated in g(2).
So, we can write:
(f o g)(2) = f(g(2))
We know that g(2) = 7, then:
(f o g)(2) = f(g(2)) = f(7)
And we know that f(7) = 12, then we can just write:
(f o g)(2) = f(g(2)) = f(7)
(f o g)(2) = 12
The correct option is A.
