Answer
The function $h\left( x \right)=\sqrt[3]{7x+4}$ can be written as composition of the functions $f\left( x \right)=\sqrt[3]{x}\text{ and }g\left( x \right)=7x+4$.
Work Step by Step
Consider the functions $f\left( x \right)=\sqrt[3]{x}$ and $g\left( x \right)=7x+4$.
Then,
$\begin{align}
& h\left( x \right)=\sqrt[3]{7x+4} \\
& =f\left( 7x+4 \right) \\
& =f\left( g\left( x \right) \right)
\end{align}$
Hence, the function $h\left( x \right)=\sqrt[3]{7x+4}$ can be written as composition of the functions $f\left( x \right)=\sqrt[3]{x}\text{ and }g\left( x \right)=7x+4$.