Debbie needs to fill juice cups for her little brother's birthday party. there are 20 juice cups and each juice cup holds 10 fluid ounces. the juice comes in 1-gallon bottles. how many 1-gallon bottles of juice will debbie need to purchase?
(1 quart = 32 fluid ounces, 1 gallon = 4 quarts)
a.1 bottle
b. 2 bottles
c. 3 bottles
d.4 bottles