Suppose that an excise tax of 20¢ apiece and a sales tax of 30¢ apiece are imposed simultaneously. Answer again all of the questions in Exercise.

Suppose the demand curve for oranges is given by the equation

Q = −200 • P + 1,000

With quantity (Q) measured in oranges per day and price (P) measured in dollars per orange. The supply curve is given by

Q = 800 • P

Compute the equilibrium price and quantity of oranges.