The present value of the future cash flow is $67,673 (option B).
The present value of future cash flows can be determined by adding the discounted cash flows together. The cash flows in this question are the positive net cash flows the machine would generate and the salvage value of the machine at the end of eight years.
The formula that can be used to determining the present value of a cash flow is:
Present value = [tex]\frac{FV}{(1 + r)^{n} }[/tex]
Where:
Present value of the cash flows = [tex]\frac{12000}{1.09}[/tex] + [tex]\frac{12000}{1.09^{2} }[/tex] + [tex]\frac{12000}{1.09^{3} }[/tex] + [tex]\frac{12000}{1.09^{4} }[/tex] + [tex]\frac{12000}{1.09^{5} }[/tex] + [tex]\frac{12000}{1.09^{6} }[/tex] + [tex]\frac{12000}{1.09^{7} }[/tex] + [tex]\frac{12000}{1.09^{9} }[/tex] + [tex]\frac{2,500}{1.09^{8} }[/tex] = $67,673
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