Question

Lin bought 1 pretzel from a snack cart for $4.80. There’s a 5% sales tax rate.

How much did Lin pay for the pretzel?

Answer 1

$\begin{array}{|c|ll} \cline{1-1} \textit{a\% of b}\\ \cline{1-1} \\ \left( \cfrac{a}{100} \right)\cdot b \\\\ \cline{1-1} \end{array}~\hspace{5em}\stackrel{\textit{5\% of 4.80}}{\left( \cfrac{5}{100} \right)4.80}\implies 0.24~\hfill \underset{\textit{price including tax}}{\stackrel{4.80~~ + ~~0.24}{5.04}}$

Answer 2

$4.80 plus a 5% tax rate would put you at $5.04. So she payed $5.04 for the pretzel.