please answer all, and explain

Matheson Electronics has just developed a new electronic device it believes will have broad market appeal. The company has performed marketing and cost studies that revealed the following information: a. New equipment would have to be acquired to produce the device. The equipment would cost $315,000 and have a six-year useful life. After six years, it would have a salvage value of about $15,000. b. Sales in units over the next six years are projected to be as follows: c. Production and sales of the device would require working capital of $60,000 to finance accounts receivable, inventories, and day-to day cash needs. This working capital would be released at the end of the project's life. d. The devices would sell for $35 each; variable costs for production, administration, and e. Fixed costs for salaries, maintenance, property taxes, insurance, and arraight-line sales would be $15 per unit depreciation on the equipment would total $135,000 per year. (Depreciation is based on f. To gain rapid entry into the marker, the company would have to adveruse heavily. The cost less salvage value) advertising costs would be: g. The company's required rate of return is 14%. Click here to view Exhibit 7B1 and Exhibit 7B-2, to determine the appropriate discount factor(s) using tables. Required: 1. Compute the net cash inflow (incremental contribution margin minus incremental fixed expenses) anticipated from sale of the device for each year over the next six years. 2-a. Using the data computed in (1) above and other data provided in the problem, determine the net present value of the proposed investment 2-b. Would you recommend that Matheson accept the device as a new product? Why? Why not