Silverberg Manufacturing is considering investing $90,000 in a new piece of machinery that will generate net annual cash flows of $40,000 each year for the next 4 years. The machine has a salvage value of $15,000 at the end of its 4 year useful life. Silverberg's cost of capital and discount rate is 6%. What is the dollar amount that we would multiply the factor by when using the PV of an Annuity table? $160,000 $90,000 $15,000 $40,000