Question

Henry went to the store with $25.00 and returned home with 3 gallons of ice

Answer 1

Each gallon cost $6.23.

Explanation:
25-6.31=18.69
He spent $18.69 at the store since he has $6.31 left out of the $25 he originally had

He brought 3 gallons with an equal price each gallon so
18.69/3=6.23

He spent $6.23 on each gallon