9. (13 points) An enterprising entrepreneur purchases two firms to produce widgets. Each firm produces an identical product, and each has a production function given by 9. = Vkl, The firms differ, however, in the amount of capital equipment each has. In particular, firm I has ki = 25, whereas firm 2 has k2 = 100, Rental rates for k and I are given by W= V= $1. A. (4 points) Find the marginal (physical) product of labor for the two firms in the short run