Calculus homework question help urgently

Question

Let ℎ(𝑥)=𝑓(𝑔(𝑥)). If:

𝑓(3)=−9, 𝑓′(35)=−5, 𝑓′(3)=2, 𝑔(3)=35, & 𝑔′(3)=4,

then ℎ′(3)=   

Answer 1

h(x) = f(g(x))

By the Chain Rule, h'(x) = f'(g(x))g'(x).

So, h'(3) = f'(g(3))g'(3) = f'(35)(4) = (-5)(4) = -20