Question

what is the original price of the tennis racquet if it is 30% off and the sale price is $21

Answer 1

sale price = $21

30% off is

let

x = original price

$\begin{gathered} \frac{30}{100}x=21 \\ 30x=2100 \\ x=\frac{2100}{30} \\ x=\text{ \ 70} \end{gathered}$

The original price = $70