3. Last year, RG sold 4920 guitars at an average price of 1200 each. It employed 42 professional craftsmen earning 50 000 per year and one manager earning 70 000 per year. Annual fixed costs Insurance 120 000 Rent 480 000 Manager's and craftsmen's salaries X Apprentices' salaries 700 000 Lease on equipment 600 000 Variable costs per guitar Materials 225 Supplies 35 Other 15 Calculate for RG for one year: (a) manager's and craftsmen's salaries (figure X). (b) the break-even level of output (show all your working). (c) the profit or loss last year (show all your working). (d) Construct a fully labelled break-even chart for RG. [1 mark] [2 marks] [2 marks] (5 marks]