Question

HELP!!!!
A pair of shoes costs $30.99 and the state sales tax is 5%. Use the formula C = p + rp to find the total cost of the shoes, where C is the total cost, p is the price, and r is the sales tax rate.

Answer 1

I just answered this question.

Answer 2

not really

Answer 3

I dont' see how the state tax comes in...but \(\large {
c=p+rp\quad
\begin{cases}
p=30.99\\
r=30\%\to \frac{30}{100}\\

\end{cases}
}\)
plug and chug