19.2) Consider a perfectly competitive market with aggregate demand given by qPC) = 10 - p. Assume that only two firms operate in this industry. The cost function of frm 1 is (a) = 39 - 791, whereas that of form 2 is C (a) -4,3 Find the supply functions for each firm, and then find aggregate industry supply. Then calculate the equilibrium price and output quantity, O $6.84, 3.16 units O $10.43, 9.24 units O $321, 8.04 units $1.34, 5.43 units