Answer :
assuming simple interest rate with an APR, then,
[tex]\bf ~~~~~~ \textit{Simple Interest Earned Amount}\\\\ A=P(1+rt)\qquad \begin{cases} A=\textit{accumulated amount}\\ P=\textit{original amount deposited}\to& \$1500\\ r=rate\to 4.25\%\to \frac{4.25}{100}\to &0.0425\\ t=years\to 18\frac{1}{2}\to &18.5 \end{cases} \\\\\\ A=1500(1+0.0425\cdot 18.5)\implies A=1500(1.78625)[/tex]
[tex]\bf ~~~~~~ \textit{Simple Interest Earned Amount}\\\\ A=P(1+rt)\qquad \begin{cases} A=\textit{accumulated amount}\\ P=\textit{original amount deposited}\to& \$1500\\ r=rate\to 4.25\%\to \frac{4.25}{100}\to &0.0425\\ t=years\to 18\frac{1}{2}\to &18.5 \end{cases} \\\\\\ A=1500(1+0.0425\cdot 18.5)\implies A=1500(1.78625)[/tex]
