Compute the payback period (ignore income taxes and round your answer to 1 decimal place). Company purchased a new piece of construction machinery. All assets are depreciated using the straight-line method. Machine purchase price was $26,000. Machine will have a 6-year useful life. Machine's estimated salvage value is $5,500. Machine should generate incremental revenue of $33.500 per year. Annual incremental operating costs (excluding depreciation) of the new machine will be about $28,000. 047 years 051 years 37 years 10 17 years