The purchasing power P (in dollars) of an annual amount of A dollars after t years of 5% inflation decays according to the following formula.† P = Ae−0.05t (a) How long will it be before a pension of $60,000 per year has a purchasing power of $20,000? (Round your answer to two decimal places.)

9987

step-by-step explanation:

step-by-step explanation:

yes it represnts a functio, their are not 2 of the same numbers on the both sides

graph b

step-by-step explanation:

one solution- graph a (clear intercepting point.)

no solution- graph b (they're parallel, there will never be a point of interception.)

infinite solutions- graph c (all points intercept.)