Suppose that the production function for iPods is Q = 20K^0.5L^0.5. The marginal product of labor is 10(K/L)^0.5, and the marginal product of capital is 10(L/K)^0.5. Suppose that labor can be hired for $6, and capital can be rented for $9. If the firm has exactly $300 to spend on producing iPods, what is the maximum number of iPods it can produce?