Consider the accompanying cash flow diagram, which represents three different interest rates applicable over the five year time span shown. (a) Calculate the equivalent amount P at the present time The equivalent amount P at the present time is $. (Round to the nearest dollar.) (b) Calculate the single-payment equivalent to F at n = 5. The single-payment equivalent to F at n = 5 is $. (Round to the nearest dollar.) (c) Calculate the equivalent equal-payment series cash flow A that runs from n = 1 to n = 5. The equivalent equal-payment series cash flow A is $. (Round to the nearest dollar.)