Question

A new home is being furnished with a couch that costs $687.50. How much will the couch cost after a 6% sales tax is applied?

Answer 1

`\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{6\% of 687.50}}{\left( \cfrac{6}{100} \right)687.50}\implies 41.25~\hfill \underset{after~tax}{\stackrel{687.50~~ + ~~41.25}{728.75}}`