Which should be calculated first to solve this story problem?

Brittany has had a membership to the community pool for 8 weeks. She goes to the pool 4 times a week. She works out in the pool 1.25 hours each visit. She spends 0.25 hours doing water exercises and the rest of the time she spends swimming laps.



How much time does Brittany spend swimming laps in a week?



A.
the total number of times Brittany went to the pool in 8 weeks


B.
the total number of hours Brittany spends swimming laps each visit


C.
the total number of hours Brittany spends doing water exercises each month.