you want to buy three books that are on sale at 20% off. the original prices of the books are $2.50, $4.95, and $6.00. How much will you save?

To find out how much you will save on the three books with a 20% discount, you need to calculate the discount amount for each book and then add them up.

First, calculate the discount for each book:
1. Book 1: Original price = $2.50
Discount = 20% of $2.50 = 0.20 * $2.50 = $0.50

2. Book 2: Original price = $4.95
Discount = 20% of $4.95 = 0.20 * $4.95 = $0.99

3. Book 3: Original price = $6.00
Discount = 20% of $6.00 = 0.20 * $6.00 = $1.20

Now, add up the discounts for all three books:
$0.50 + $0.99 + $1.20 = $2.69

Therefore, you will save a total of $2.69 on the three books that are on sale at a 20% discount.

20% of the sum of their original prices, because of the distributive property.