In May 1991, Car and Driver described a Jaguar that sold for . At that price only have been sold. It is estimated that could have been sold if the price had been . Assuming that the demand curve is a straight line, and that and are the equilibrium price and quantity, find the consumer surplus at the equilibrium price.

Janis owns and operates a store in a country experiencing a high rate of inflation. in order to prevent the value of money in her cash register from falling too quickly, janis sends an employee to the bank four times per day to make deposits in a interest-bearing account that protects the store's revenues from the effects of inflation. this is an example of the (menu costs/ unit of account costs/ shoesleather costs) of inflation. pick one