A hardware store sells single digits to be used for house numbers. There are five 5s, four 4s, three 3s and two 2s available. From this selection of digits, a customer is able to purchase her three-di

A hardware store sells single digits to be used for house numbers. There are five 5s, four 4s, three 3s and two 2s available. From this selection of digits, a customer is able to purchase her three-digit house number. How many possible three-digit house numbers could this customer make?