The demand and supply functions for two interdependent commodities are given by Qpi = 10 - 2P, + P2 QD2 = 5+ 2P, - 2P2 Qs = -3 + 2P Qs2 = - 2 + 3P Determine the equilibrium price and quantity of this two-commodity model. ho a. P, = 4, Q. =5, P2 =3, Q2 =7 b. P, = 4, Q. =7, P2 =13, Q2 =14 c. P, = 40, Q. =30, P, =10, Q. =55 d. P. = 40, Q. =30, P, =12, Q2 =55