[tex]\bf \qquad \textit{Simple Interest Earned Amount}\\\\
A=P(1+rt)\qquad
\begin{cases}
A=\textit{accumulated amount}\\
P=\textit{original amount deposited}\to& \$100\\
r=rate\to 7.2\%\to \frac{7.2}{100}\to &0.072\\
t=years\to &5
\end{cases}
\\\\\\
A=100(1+0.072\cdot 5)[/tex]
