Answer: The answer to your question is: 1 quart = $2.56
Step-by-step explanation: data
3-gallon cost = $30.72
cost of 1 quart = 2.56
Rule of three
1 gallon --------------- 4 quarts
3 gallons --------------- x
x = 12 quarts
12 quarts --------------- $30.72
1 quart ---------------- x
x = 1x 30.72 / 12 = $ 2.56