Required information The following information applies to the questions displayed below.) Helicopter Gear is planning to expand its product line, which requires investment of $472,200 in special-purpose machinery. The machinery has a useful life of six years and no salvage value. The estimated annual results of offering the new products are as follows: 525,500 Expenses (Inelading straight-line depreciation) Increase in net ineome 25,900 All revenue from the new products and all expenses (except depreciation) will be received or paid in cash in the same period as recognized for accounting purposes. The payback period for this proposed investment is Multiple Choice 23 years 9.1 years 4.5 years 60 years. o0 esc F2 F3