AB and C please

There are two segments of the market represented by demand relationships: Q = 90 3p and Q = 180 639. There's a constant marginal cost of $10 to serve the market. There are 5 consumers in each of the two demand segments. In other words, there are 5 people whose individual demand is represented by Q = 30 3p and 5 people whose demand is represented by Q = 180 6p. (a) Find the optimal two-part tariff scheme if you are required to charge a per-unit price of $10, but must offer the same xed price to both types of demanders. Report both prices and prots. (b) 12 points Find the optimal twopart tariff scheme if you are free to set any per unit price but must offer the same xed price to both types of demanders. Report both prices and prots. (c) Find the optimal two-part tariff scheme if you are able to offer a different xed price to both types of demanders (and any perunit price). Report both prices and prots