Use the following to answer question: 
-(Table: Costs of Birthday Cakes) Use Table: Costs of Birthday Cakes.Assume that fixed costs are $10.What is the average total cost of 4 cakes?
Definitions:
Marginal Social Cost
The additional cost to society as a whole of producing one extra unit of a good or service.
Too Little
A situation where the quantity or amount available or supplied is insufficient to meet demand or requirements.
External Cost
Costs of a transaction that affect people other than the buyer or seller, typically not reflected in the market price.
Air Pollution
The presence of harmful substances in the air, often resulting from human activities, leading to environmental and health issues.
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