A publisher is deciding whether to invest in a new printer. The investment requires an initial payment of $500 immediately. This will increase cash flows at the end of the each of the next three succeeding years by $600.

21)

If the interest rate is 10% then the net present value of these cash flows is

a.$1041.32

b.$992.09

c.$1090.91

d. $590.91

22)If the cost of capital increased to 25%, does the firm invest in the printer?

a) Yes because the NPV>0

b) Yes because the NPV=0

c) Need information on the marginal benefits and costs

d) No because the NPV<0

give me the answer and explanations !