A firm uses capital and labor to produce output according to the pproduction function q = 4sqrt(KL), for which MPL = 2sqrt(K/L) and MPk = 2sqrt(L/K) a. If the wage w=$4 and the rental rate of capital r=$1,what is the least expensive way to produce 16 units of output? ?????? b. What is the minimum cost of producing 16 units? c. Show that for any level of output q, the minimum cost of producing q is $q. d. Explain how a 10% wage tax would a§ect the way in which the firm chooses to produce any given amount of output