Oerther Corporation reports that at an activity level of 5,000 units, its total variable cost is $131,750 and its total fixed cost is $31,200. What would be the total variable cost at an activity level of 5,200 units

Parks corporation is considering an investment proposal in which a working capital investment of $10,000 would be required. the investment would provide cash inflows of $2,000 per year for six years. the working capital would be released for use elsewhere when the project is completed. if the company's discount rate is 10%, the investment's net present value is closest to (ignore income taxes) ?