If the market demand curve is given by the equation Q_d=150-12P_d And the market supply curve is given by the equation Q_s=100+2P_s. Then the equilibrium price P_e and equilibrium quantity Qe are: Select one: O 1. (3.57, 107.14). O 2. (107.14, 3.57). O 3. (107, 4). O 4. (4, 107). O 5. (4.57. 107.14)If two factors of production are substitutes, the shape of a firms isoquant will be a: Select one: O 1. A curve which is concave-convex to the origin. O 2. A curve which is convex to the origin. O 3. A curve which is concave to the origin. O 4. Straight line. O 5. Right-angle