13. (15 points) The quantity demanded a: of the Mikado cameras per week is related to the unit price by the relation p = 0.2m + 100 where p is measured in dollars and a: is measured in units of a hundred. The supplier is Willing to make cc units of the cameras available in the market if the unit price is p = 0.1.1: + 40 dollars. (a) Find the equilibrium price and quantity. (b) Compute the consumers' Surplus and producers' surplus if the market unit price is set as the equilibrium price