The market for DVD rentals in Dallas, Texas, is estimated to be P= 10-0.002Q. Marginal cost (MC) of rental is equal to $2. Where PD is the price (per DVD in $) for DVD QD is quantity of weekly rental. The marginal revenue (MR) for rental is equal to MR= 20- 0.004QD
The equilibrium weekly rental is equal to
Equilibrium price of DVD rental
Equilibrium profits from DVD sales