17. The cashier's algorithm for subtraction is closely related to the missing-addend approach to subtraction; that is, a- b = c if and only if a = b + c. For example, you buy $2 of school supplies and give the cashier a $50 bill. While handing you the change, the cashier would say "$23, $24, $25, $30, $40, $50." How much change did you receive? What cashier said: $23, $24, $25, $30, $40, $50 Money received: 0, $1, $1, $5, $10, $10 Now you are the cashier. The customer owes you $62 and gives you a $100 bill. What will you say to the customer, and how much will you give back?