I found some shirts for Jonah that were 40 percent of their regular price I bought him 3 shirts and each one was regularly priced $18 how much did I save for buying the shirts on sale

32.40

Step-by-step explanation:

The shirts were 40% of the regular price

The sale price of 1 shirt was

18*40% = sale price

18*.40 = 7.20

He bought 3 shirts, so multiply by 3

3 * 7.2 = 21.60

He paid 21.60

The price he would have paid without the discount is

18*3 = 54

The savings is

54 - 21.60 = 32.40