Answer:
C. 6 gallons < 25 quarts.
E. 80 pints = 40 quarts.
Explanation:
A. There are 8 fluid oz in 1 cup. 
Multiply 8 with 6: 
6 cups x 8 = 48 fl oz. 
44 fl oz < 48 fl oz ∴ A. is false.
B. There are ~6.67 pints in 1 gallon. 
Multiply 6 gallon with 6.67:
6 gallon x 6.67 = ~40.02 pint. 
47 pint > 40.02 pint ∴ B. is false.
C. There is 4 quarts in 1 gallon.
Multiply 6 gallons with 4: 
6 gallon x 4 = 24 quarts.
24 quarts < 25 quarts ∴ C. is true.
D. There is 4 cups in 1 quarts.
Multiply 7 with 4 and add 4: 
7 quarts x 4 = 28 + 4 = 32
32 cups < 34 cups ∴ D. is false.
E. 1 quart = 2 pint
You are given 80 pints: 
80/2 = 40 quarts ∴ E. is true.
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