45 cups
1 gallon = 16 cups
1 cup = 0.06 Gallon
5
1 and 2/5 cups.....There are 140g in one cup. 80grams are left after you subtract that, so, therefore, the answer is 1 and 2/5 cups.
4.5 gallons left over.
three gallons
Subtract.
Either three of the 16oz bags of flour and you will have a cup and a half of flour left over or one of the 5lbs bags.
10 cups left
There are 128 fluid ounces in a gallon. Therefore, there are 6.4 20-ounce bottles in a gallon.
subtract
There are 16 cups in a gallon, and 8 pints in a gallon.
3 eighths. three fourths is the same as six eighths, so subtract your 3/8 and you have 3/8 left
If your question is that you have four gallons of cider and you are going to serve it in eight oune cups, will you have enough to serve to 30 people; then the answer is yes. You would have enough to serve 30 peopole 2 servings each and still have cider left.