The table below contains data on the supply and demand schedules for rental housing in a small town:

Rent

(dollars per month)

200

300

400

500

600

Quantity of apartments supplied

(per month)

20

40

60

80

100

Quantity of apartments demanded (per month)

100

80

60

40

20

A) Calculate the equilibrium rent per month

B)Now suppose the government imposes a rent ceiling equal to $300 per month. Calculate the shortage of housing units as a result of this rent ceiling.