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A potato farmer needs to buy a new harvester Two types have performed satisfactorily in field trials The SpudFinder costs $100.000 and should last for five years. The Tater Taker also costs $100,000 but requires an extra operator at $20,000 per season. This machine has a service life of seven years. The salvage value of either machine is insignificant If the farmer requires a 7% return on investment, which harvester should she buy The farmer should buy the (Click to select) OOK