3. For the following, perform a break-even analysis showing computation of the a) contribution margin b) contribution rate c) break-even point in units d) break-even point in dollars. Mike is considering working for Part-Time Painters. He would operate as an independent painter, but the jobs would be given to him by the company. In the company's advertisement, $120 would be charged for each room painted. The painter would then get 80% of the amount billed. For each job the painter would supply paint and brushes, at a cost of 40$. Each painter must have his or her own ladders, drop cloths, and other tools, at a cost of $820