Please help with parts A & B.

a. A new operating system for an existing machine is expected to cost $610,000 and have a useful life of six years. The system yields an incremental after-tax income of $250,000 each year after deducting its straight-line depreciation. The predicted salvage value of the system is $17,400 b. A machine costs $460,000, has a $29,000 salvage value, is expected to last eight years, and will generate an after-tax income of $74,000 per year after straight-line depreciation. Assume the company requires a 12% rate of return on its investments. Compute the net present value of each potential investment (PV of $1. FV of $1. PVA of $1, and FVA of $1) (Use appropriate factor(s) from the tables provided.) Complete this question by entering your answers in the tabs below. Required a Required B A new operating system for an existing machine is expected to cost $610,000 and have a useful life of six years. The system yields an incremental after-tax income of $250,000 each year after deducting its straight-line depreciation. The predicted salvage value of the system is $17,400. (Round your answers to the nearest whole dollar.) Select Chart Amount X PV Factor Cash Flow Annual cash flow Residual value Present Value $ 0 0 Net present value Required B > Required a Required B A machine costs $460,000, has a $29,000 salvage value, is expected to last eight years, and will generate an after-tax income of $74,000 per year after straight-line depreciation. (Round your answers to the nearest whole dollar.) Select Chart Amount x PV Factor Cash Flow Annual cash flow Residual value Present Value - $ 0 0 Net present value