Answer:
24 cans
Step-by-step explanation:
The number of glycol solution needed to prevent water from freezing is 42 galloons. The glycol solution comes in cans of 1.75 gallons.
Therefore 1 can of glycol = 1.75 gallon.
Number of cans of glycol needed = Total gallons of glycol needed / number of gallon present in each can
Number of cans of glycol needed = 42 gallons / (1.75 gallon per can)
Number of cans of glycol needed = 24 cans
Therefore a total of 24 cans are needed.