You're given the following demand and supply tables: a. Calculate market demand and market supply. P D1 D2 D3 DMarket $30 20 5 10 40 15 3 7 50 10 0 5 60 5 0 0 P S1 S2 S3 SMarket $30 0 4 11 40 0 8 17 50 10 12 18 60 10 15 20 b. Draw the market demand and market supply curves and label equilibrium price and quantity. Instructions: (1) Use the tools provided 'DMkt' and 'SMkt' to draw the market demand and supply curves. Plot these curves for the prices given in the tables above (4 points for each curve). (2) Use the point tool provided 'Pt. A' to identify the equilibrium price and quantity. c. At a price of $30, is . At a price of $60, is .