K Suppose the weekly demand for a certain good in thousands of units, is given by the equation P = 27 - 2Q, and the weekly supply curve of the good by the equation P = 0 + Q where P is the price in dollars. Finally, suppose a per-unit tax of $15, to be collected from sellers is imposed in this market. Complete the following questions. Note: If necessary round your answers to two decimal places. a) Graph the weekly demand, supply (pre-tax), and supply (post-tax) equations. Supply Curve (with tax) 367 32 28- 24 Price ($) 20 16 N 2 6 8 10 12 14 16 18 Reset Quantity (thousands of units/week) b) What is the equilibrium price before the tax? Equilibrium Price = $0