10 TW Cable Co. plans to begin operation in a large town and to expand later to a nearby small town. TW estimates its net cash flows to be: Business Mathematics 367 Time (year) Cash Flow 0 -$600,000 1 100,000 2 3 100,000 -50,000 (expansion) 150,000 700,000 (includes sale of business) 4-9 10 Find the net present value at 17% and the internal rate of return