The demand function for rental apartments is D(p) = 900p, and the supply function is S(p) = 200 + p.

(a) What is the equilibrium price (rent) and quantity of apartments rented?

(b) What quantity tax t will maximize the government's revenue?

(c) If the government makes it illegal for landlords to charge more than p' of rent, what value of p' results in the same deadweight loss as your answer in part (b)?