A company is considering purchasing a machine that costs $320,000 and is estimated to have no salvage value at the end of its 8-year useful life. If the machine is purchased, annual revenues are expected to be $100,000 and annual operating expenses exclusive of depreciation expense are expected to be $38,000. The straight-line method of depreciation would be used. The cash payback period on the machine is O 7.3 years. 8.0 years. 5.2 years. 2.6 years.