Suppose that a firm's production function is given by Q = K0.33L0.67, where MPK = 0.33 K-

Question:

Suppose that a firm's production function is given by Q = K0.33L0.67, where MPK = 0.33 K- 0.67L0.67 and MPL = 0.67K0.33L- 0.33.
a. As L increases, what happens to the marginal product of labor?
b. As K increases, what happens to the marginal product of labor?
c. Why would the MPL change as K changes?
d. What happens to the marginal product of capital as K increases? As L increases?