9. A firm operates in a perfectly competitive market. The mark price of its product is 8 birr and the total cost function is given by TC=Q³-1002 100+100, where TC is the total cost and Q is the level of output. A. What level of output should the firm produce to maximize profit? B. Determine the level of profit at equilibrium. C. What minimum price is required by the firm to stay in the market? 10. Suppose that in Dbere tabor town there are 150,000 populations, among them 18% are bellow age 14 and 7% are elder, respectively. From the total labor force 60% are unemployed and the rest 40% of labor forces are employed. Cut of the total unemployment, the 30% are cyclically unemployed. Then, A. Calculate the unemployment rate and employment rate? B. Calculate the natural rate of unemployment?
