Tanesha sells homemade candles over the Internet. Her annual revenue is $64,000 per year, the explicit costs of her business are $17,000, and the opportunity costs of her business are $22,000. What is her accounting profit?

An increase in both supply and demand must increase both equilibrium price and quantity.

a. true b. false

Suppose that there are only two types of used cars, peaches and lemons. Peaches are worth $10,000 and lemons are worth $4,000. Without effective signals such as warranties, the owners of peaches cannot sell their cars for $10,000 because the

A) owners of peaches cannot convince buyers that their cars are worth $10,000. B) buyers cannot convince owners of peaches to sell their cars for $10,000. C) owners of lemons cannot convince buyers that their cars are worth more than $4,000. D) buyers cannot convince owners of lemons to sell their cars for $4,000.