You run a game day shuttle service for parking

services for the local ball club. Your costs for different

customer loads are 1: $30, 2: $32, 3: $35,

4: $38, 5: $42, 6: $48, 7: $57, and 8: $68. What

are your marginal costs for each customer load

level? If you are compensated $10 per ride,

what customer load would you want?