how to solve a composite function

Question

I need to know how to solve for for f(x) when f∘g(x)=h(x). I have h(x) and g(x) but not f(x).

Answer 1

I think that notation means the functions are multiplied.

If you are given f(x) and h(x), and then told that h(x) = f(x)*g(x), then you would find g(x) by dividing h(x) by f(x)