A machine was purchased 5 years ago at ta cost of $25000. It can be sold now for $6000. If the machine is kept for 5 more years, it is anticipated that the machine can bbe sold for $1000. a.) At a cost of capital of 12%, what is the present value of the cost of keeping and running the machine for 5 years, then disposing of it? Show the related equivalence formula(s)?