To solve $(h \circ f)(4)$, we need to understand that this represents the composition of two functions, $h(x)$ and $f(x)$, applied to the value $x = 4$. This means we first apply the function $f(x)$ to 4, and then apply the function $h(x)$ to the result of $f(4)$.

Steps:

1. Compute $f(4)$: Find the value of the function $f(x)$ at $x = 4$.
2. Compute $h(f(4))$: Use the result from step 1 as the input for the function $h(x)$.

However, to proceed, I need the definitions of the functions $h(x)$ and $f(x)$. Could you provide these functions?

Would you like to provide the functions or more details on this problem?