Charlie paid $39.25 for a cookbook he purchased from a book club. This was a saving of $3.19 off the regular price. What percent discount did the book club give Henry?

The book club gave Henry a 8.13% discount.

Step-by-step explanation:

To determine the percent discount that the book club gave Henry given that you know the price of the cookbook and the amount of the discount, you can use a rule of three:

39.25 → 100%

  3.19 →    x

x=(3.19*100)/39.25

x=8.13%

According to this, the answer is that the book club gave Henry a 8.13% discount.