Answer:
63
Step-by-step explanation:
Compositions are evaluated right to left.
Evaluation
Each function is evaluated by replacing the variable with the value of the argument.
[tex](f\circ g)(4)=f(g(4))=f(4+5)=f(9)=7\cdot9\\\\\boxed{(f\circ g)(4)=63}[/tex]
