Question

Brian has $24 worth of pizzas delivered to his house for a $3 delivery fee. He pays 7% sales tax and 15% tip, which are both calculated on the total price before the delivery fee. How much change does he receive, in dollars, if he pays with two $20 bills?

Answer 1

Given:

Cost of pizzas = $24

Delivery fee = $3

He pays 7% sales tax and 15% tip on the total price before the delivery fee.

`\begin{gathered} 7\text{ \%+15 \%=22 \%} \\ 22\text{ \% of \$ 24=}(22)/(100)\cdot24=5.28 \end{gathered}`

He pays two $20 bills.