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Online ProgramTo estimate the current value, V, of a machine, we use the formula \( V=P({1-r\over 100})^t, \) where P is the original price of the machine, r is the approximate depreciation rate of the machine, and t is the age of the machine, in years. The table above gives the approximate depreciation rates for four different machines.
* If Machine A had an original price of $50,000, and now has a value of $47,750, which of the following will be closest to the age of Machine A, in years?