Answer:
Miriam could serve 72 four-ounce servings of punch.
Explanation:
First, we must establish the equivalence between gallon and ounce. A gallon is equal to 128 ounces. Therefore, 2.25 gallons equals 288 ounces (128 x 2.25 = 288).
Now that we have the amount of ounces of punch that Miriam has, in order to know how many 4-ounce servings of punch she can serve we have to do the following calculation:
288 (total ounces) / 4 (the amount of ounces per serving) = X
72 = X
So, having 288 ounces, Miriam could serve 72 four-ounce servings.