Business calc. Show hand written work please

Question 1: Consider the Cobb-Douglas production function: f (x, y) = 200my. when x-1000 and y=500 10020 7 203 a) Find the marginal productivity of labor, of b) Find the marginal productivity of capital. af ay Question 2: The expenditures z (in billions of dollars) for spectator sports from 2004 through 2009 can be modeled by: z - 0.62x - 0.41y + 0.38 Where x represents the money spent on parks & campgrounds and y represents the money spent on live entertainment (excluding sports). a ) Find Z and ay b) Interpret the partial derivatives in the context of the