Use the following to answer question: 
-(Table: Prices and Demand) Use Table: Prices and Demand.Professor Dumbledore has a monopoly on magic hats.The marginal cost of producing a hat is $18.Suppose Dumbledore can perfectly price-discriminate.How many hats will he produce?
Definitions:
Sector
A distinct subset of a market, economy, or field of operation, often categorized by similar characteristics or types of economic activity.
Services
Intangible activities or benefits that are typically provided to satisfy the needs or wants of consumers or businesses.
Goods
Tangible products or items that satisfy human wants or needs and can be transferred from one person to another.
Product Market
The platform where end products or services are made available to individuals, companies, and the general public.
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