Please help me with these questions please

Question 12 1 points SAV A firm is considering the purchase of a new industrial machine. The estimated cost of the machine is $50 000. The machine is expected to generate annual cash inflows for the next four years as follows: Year Annual cash flow $25 000 N $20 000 $20 000 $15 000 The machine is not expected to have a residual value at the end of its useful life. If the firm uses a discount rate of 16 per cent, w is the expected net present value of the machine? (ignore taxes) $7515 O $ (5816) $12 800 $18 969 A Moving to another question will save this response.