answer in true or false please

17. Future costs that do not differ between the alternatives in a decision are avoidable costs. 18. It m ay be a good decision to replace an asset before its original cost has been fully recovered through increased revenues of decreased costs. 19. The payback method analyzes cash flows; however, it does not consider the time value of money . The present value of an amount to be received in five years is exactly twice as large as the present value of an equal amount to be received in ten years