A firm decides to invest in a new piece of machinery which is expected to produce
an additional revenue of $8000 at the end of every year for ten years. At the end of
this period the firm plans to sell the machinery for scrap, for which it
expects to receive $5000. What is the maximum amount that the firm should pay
for the machine if it is not to suffer a net loss as a result of this
investment? You may assume that the discount rate is 6% compounded
annually.

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