(15 marks) In a yearly income-leisure choice model, suppose that the wage rate is $250 per week, and the government imposes a 20% tax on your income. a. Drive the equation for the yearly income-leisure choice model; Assume 52 weeks in a year. b. If the individual chooses the optimal choice of working 34 weeks in a year, graphically show this choice. c. What is the slope at the optimal choice level of earnings