Answer:
North Park $13,000 $16,000 N
Upper River Beach 6,000 8,000 Y
South Shore 29,000 30,000 Y
Green Creek 900 1,300 N
Explanation:
The cleanup will happen in the area where the marginal benefit is more than the marginal cost. the North park will not be cleaned up. River beach will be cleaned Up. South shore will be cleaned up. Green creak will not be cleaned up.