Question

An item costs $350 before tax, and the sales tax is $28.Find the sales tax rate. Write your answer as a percentage.

Answer 1

Let x be the tax rate. Hence, we can write

$350\cdot x=28$

then, we must move 350 to the righ hand side, it reads

$\begin{gathered} x=\frac{28}{350} \\ x=0.08 \end{gathered}$

and now, we must convert the rate in decimal form to percentage form.

The relation between these form is

$\begin{gathered} \text{percentage form=decimal form x 100} \\ \\ \end{gathered}$

Therefore, we have

$0.08\cdot100=8$

then, the answer in percentage is 8%.