Can you please help me with the following task. Thank you!

Analyze the effect of an excise tax in a competitive market oft = $4 per unit: =:> GRAPH the supply (S) and demand (D) curves. Find the market equilibrium quantity and price. Find and GRAPH the new supply (Sm) or demand (Dm) curve with the tax. Find the equilibrium quantity with the tax (QT). Find the price paid by buyers (PD) and that received by sellers (P5) with the tax. Find the tax incidence: the percentage of the tax that is shied Calculate the tax revenue raised (REV). Calculate the deadweight loss (DWL). E> Calculate the tax efciency ratio: TAXEFF = DWL/REV 8008086 D. Perfectly inelastic supply; buyers pay an excise tax Demand: P = 12 - Q Supply: Q = 5 Tax per unit: 1: = $4 Equilibrium, no tax: Q* = _ P* = $_ With tax: QT = _ Price paid by buyers: PD = $_ Price received by sellers: P5 = $ Percentage of tax shifted = 0/0 Tax revenue raised: REV = $ Deadweight loss: DWL = $ Tax efciency ratio: TAXEFF =