I just need help on part e of this problem thanks!

2. A firm is considering whether to produce the parts for one of its product or to buy them from a supplier. If the firm decided to make the parts, the annual cost is $50,000 and the variable cost per part is $80. However, if the firm purchased the parts from its supplier, the cost is $120 each. a. Using this information, find the best decision if the demand is 2,000 parts. b. Determine the break-even quantity at which the firm would be indifferent between manufacturing the part in-house and outsourcing it. c. If demand is forecast to be 1,000 parts, should the firm make the part in-house or purchase it from a supplier? Why? d. The marketing department forecasts that the upcoming year's demand will be 2200 parts. A new supplier offers to make the parts for $100 each. Should the company accept the offer? Show your work to make your argument. e. What is the maximum price per part the manufacturer should be willing to pay to the supplier if the forecast demand for the part is 3,000