Answer:
i think its -1 box but im not sure
Step-by-step explanation:
7 hours
Let x represent hours rented
59=17+6x
42=6x
x=7
1 gallon = 4 quarts
1 quart = 32 ounces
1 gallon = 128 ounces
9 gallons = 1,152 ounces
Filling 8 ounce cups = 1,152 / 8 = 144 cups