Coretta has 79 nickels, 31 dimes, 13 quarters , and 9 fifty-cent pieces. How much money does she have?

First count the change of 2 quarters, four dimes, and 3 nickels which = 50 + 40 + 15 = 105 cents = 1 dollar and 5 cents = $1.05. Next count the bills which equals = 20 + 10 = 30 dollars = $30. Now add them together = 30 dollars + 1 dollar + 5 cents = 31 dollars and 5 cents = $31.05.