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Question 23 (12 points) A company is considering buying a piece of machinery that will allow material savings on the electricity bill but also requires periodic maintenance. In order to determine whether it is worth it to make the purchase, which of the following statements are true? (select all that apply - i.e. just one or as many as all of them) Knowing the purchase price of the machinery is not necessary It is always necessary to use a future value table If the present value of all cash inflows is lower than the present value of all cash outflows, the company should not make the purchase An annuity table is always going to be used