Christa needs 5 gallons of punch for a party. She has 5 quarts, 8 pints, and 2 cups of punch already made. How many more cups does she need? Christa needs \( \square \) more cups of punch. (Type a whole number.)

First, let's convert everything Christa already has into cups. There are 4 cups in a quart, so 5 quarts equal 20 cups (5 quarts x 4 cups/quart = 20 cups). Next, 8 pints convert to cups as well, with 2 cups in a pint, making 16 cups (8 pints x 2 cups/pint = 16 cups). Lastly, she has 2 cups already. Now, add those together: 20 cups + 16 cups + 2 cups = 38 cups of punch. Now, to find out how many cups she needs, we first convert 5 gallons into cups. Since there are 16 cups in a gallon, 5 gallons is 80 cups (5 gallons x 16 cups/gallon = 80 cups). Finally, subtract the punch she has from the total she needs: 80 cups - 38 cups = 42 cups. Christa needs 42 more cups of punch.