Question

15 acres decreased by 80%

Answer 1

`\begin{array} \cline{1-1} \textit{\textit{\LARGE a}\% of \textit{\LARGE b}}\\ \cline{1-1} \\ \left( \cfrac{\textit{\LARGE a}}{100} \right)\cdot \textit{\LARGE b} \\\\ \cline{1-1} \end{array}~\hspace{5em}\stackrel{\textit{80\% of 15}}{\left( \cfrac{80}{100} \right)15}\implies 12~\hfill \underset{ decreased }{\stackrel{ 15~~ - ~~12 }{\text{\LARGE 3}}}`