3.1 Company DEF wants to buy a machine that produces t-shirts. The selling price per t-shirt will be N$10. The cost of production will be as follows: Fixed costs of N$15,000 and a per unit cost of N$4. (a) Calculate the break even point in units. (5) (b) Due to the disruptions on supply chains caused by the war in Ukraine, company DEF learned that there might be an increment of 10% in indirect costs. Should this happen, what will be the new break even point in units? (5) 3.2 If you deposit N$30,000 in an account that pays an annual interest rate of 6% compounded monthly, what will your account balance be in 20 years? (8)