Question 10: A firm has a production function Q = F(K, L) with constant returns to scale. Input prices are r =$2/K-unit and w =Sl/L-unit. The output expansion path for this production function at these input prices is a straight line through the origin. When it produces 5 units of output, it uses 2 units of K and 3 units of L. How much K and L will it use when its long-run total cost is $70? How much will Q be? What is the LAC