F(K,L) = [min(K;L) 12 F(K;L) = (min(K;L)) 1/2 a) what are the returns to scale for each function? Let WL = WK = 1 b) Find the cost functions for each of the production functions. c) Plot the cost function on the same graph with y on the horizontal axis and cost on the vertical one. d) Find and plot the average and marginal cost functions with y on the horizontal axis and average cost on the vertical one