20. A store offers a discount of 10% to customers who spend more than $20. If a customer's
total bill was $80, what will he actually pay?
A. $60
B. $70
C. $72
D. $74

First, you need to find 10% of $80. You do this by turning 10% into a decimal. This is 0.1. Multiply 80 x 0.1
This is 8, or $8.

Since it is a discount, you need to subtract from 80. So do 80-8.

This gives you 72.
Therefore, your answer is C, $72

I hope this helps! Happy Thanksgiving!