A cost minimizing firm's production function is Q=KL. The price of labor, w, is currently $4, and the price of capital, r, is currently $2. At the firm's current level of output, it has total costs of $160. Input prices change such that the wage rate is now 8 times the rental rate. The firm adjusts its input combination, but leaves total output unchanged.

Answer the questions below as you solve for the cost-minimizing input combination after the price changes.

1. Solve for the initial input combination and the initial level of output (before the price change). Hint: you must maximize output subject to a "total cost" constraint...think utility optimization.

L0:

K0:

Q0: