* 5.2 The following data represents output for a perfectly competitive firm with a product price of $2 per unit. Assume that the productivity of each resource is independent of the quantity of the other two.

a. Fill in the table.

b. If the price of labor is $4 per unit, the price of capital is $10 per unit, and the price of land is $80 per unit, what is the profit-maximizing combination of resources? Explain in terms of marginal revenue product.

Total Labor Units Total Product MPL TR ($) MRPL ($) Total Capital Units Total Product MPK TR ($) MRPK ($) Total Land Units Total Product MPA TR ($) MRPA ($) 0 0 0 0 0 0 1 12 1 20 1 100 2 20 2 35 2 180 3 26 3 45 3 240 4 30 4 50 4 280 5 32 5 52 5 300 6 32 6 53 6 310