Suppose that the marginal tax rate is 25%. If a farmer decides to purchase a combine it will increase his revenue by $7,500 per year, but it will also increase his expenses by $1,500 per year. The before tax rate on this investment is 30%. The life of this investment is 10 years. What is the present value of the after tax net return?

		$16,067
		$17,371
		$13,912
		$15,683
		None of the answers are correct.