Answer:
B 3/4 gallon
Explanation:
Starts off with: 6 3/4
Drinks per each session: 1 1/2
Number of gym sessions: 4
Solve for how much water he drinks in 4 classes:
1 1/2 × 4
Convert mixed number to improper fraction:
3/2 × 4/1
12/2
6
Find the difference between what he starts with and what he drinks:
6 3/4 - 6
3/4