Question

Leila bought some books. She spent a total of $58 after a discount of $7 off of her total purchase. Each book cost $5.

Option 1: Total Cost = 7b - 5
Option 2: Total Cost = 5b - 7
Option 3: Total Cost = 58b - 7
Option 4: Total Cost = 5b + 7

Answer 1

The correct option is Option 2: Total Cost = 5b - 7.

Step-by-step explanation:

The correct option is Option 2: Total Cost = 5b - 7.

To find the total cost of the books after the discount, we can subtract the discount from the total purchase amount. In this case, Leila spent a total of $58 after a discount of $7 off her total purchase. So the equation becomes: Total Cost = 58 - 7 = 51.

Since each book costs $5, we can represent the number of books as 'b'. Therefore, the equation for the total cost becomes:

Total Cost = 5b - 7.