Demand and supply in the market for board games are given by the following equations: Qd =302P Q5=4P6 If the government imposes an excise tax of $9 in the market for board games, how much of the decrease in total surplus resulting from the $9 tax is deadweight loss? The equation of S-l-tax is P=iQ3+%. The equilibrium point before the tax is (18, 6). The deadweight loss is $ Number