Suppose the current equilibrium price of cheese pizzas is $9.00, and 10 million pizzas are sold per month. after the federal government imposes a $4.00 per pizza tax, the equilibrium price of pizzas rises to $11.00, and the equilibrium quantity falls to 6 million. compare the economic in this market when there is no tax to when there is a tax on pizza. with the tax, the change in economic surplus is