a company is planning to manufacture helmets. fixed monthly cost will be 50,000 and it will cost 25.00 to produce each helmet . how many helmets must be produced each month for the company to have an average cost of 35.00 per helmet?

2)two sailboats ,one averaging 20 mph and the other 15 mph ,start at the same place and follow the same course. the slower boat arrives at the end of the course 1/6 of an hr after the faster sailboat . how far did each boat travel.