Question

How much will you tip on a 75.45 steak dinner,if you leave an 18% tip

Answer 1

`\bf \begin{array} \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{18\% of 75.45}}{\left( \cfrac{18}{100} \right)75.45}\implies 13.581`