There is no error to the question. Read the question and answer each part a- d. all the information for the question is in the paragraph. please answer all the questions

5) Suppose a rm is a monopoly producer (in the product market) and also a monopsony buyer in the labor market. Demand for the output is P = 440 - 2Q. The production function is Q: 0.5L. and rm will pay the wage rate based on the labor supply function w = 20 +2]... a) (4 points) Derive this rm's demand for labor. b) (4 points) Derive rm's marginal expmditure mctiou. c) (4 points) How many units of labor this firm will hire? d) {4 points) What wage rate this firm will pay