Novak Company is considering buying a machine for $180000 with an estimated life of 10 years and no salvage value. The straight-line method of depreciation will be used. The machine is expected to generate net income of $2000 each year. The cash payback on this investment is 9.0 years. O 18 years. O 45 years. O 10 years. O 9.0 years. O 18 years. O 45 years. O 10 years