It’s already Tuesday and here I go with this week’s problem of the week. Sorry for the late start. This week’s problem has to do with money. Good luck. When stores are very busy, lines of customers at the cash registers get very long. One way cashiers can work quickly is by using the minimum number of coins possible when giving back change. If you purchased an item that costs $2.99, and paid with a $20.00 bill, what would be the minimum number of coins the cashier could give you as change?