Answer:
The team needs to swim 11,127 more laps in the last weekend.
Explanation:
The park districts goal is 40,000 laps.
A park district holds a fundraiser over 4 weekends.
Over three weekends the team swam 8,597 laps 11,065 laps and 9,211 laps.
So, total laps become =
laps
The number of laps they need to swim the fourth weekend to reach there goal are =

Therefore, the team needs to swim 11,127 more laps in the last weekend.