Question

To finance her community college education, Sarah takes out a loan for $2900. After a year Sarah decides to pay off the interest, which is 4% of $2900. How much will she pay

Answer 1

`\bf \begin{array}ll \cline{1-1} \textit{a\% of b}\\ \cline{1-1} \\ \left( \cfrac{a}{100} \right)\cdot b \\\\ \cline{1-1} \end{array}~\hspace{5em}\stackrel{\textit{4\% of 2900}}{\left( \cfrac{4}{100} \right)2900}\implies 116`