Calculating Discounted Price for Books

A local bookstore is having a sale where customers can buy multiple copies of the same book at a discounted price. If a customer buys 3 copies of a book priced at $12 each, they will receive a 15% discount on the total price.

What will be the total cost for the customer after applying the discount?

Use the formula for calculating the discount: Discounted Price = Original Price - Discount, where Discount = Original Price × Discount Rate.

Remember the original price is calculated by multiplying the price of one book by the number of copies purchased.