Samantha plans to invest some money so that she has $2,600 at the end of three years. How much should she invest today given the following choices: (If you solve this problem with algebra round intermediate calculations to 6 decimal places, in all cases round your final answer to the nearest penny.)
a. 4.2 percent compounded daily.
Amount required to be invested $
b. 4.9 percent compounded monthly.
Amount required to be invested $
c. 5.2 percent compounded quarterly.
Amount required to be invested $
d. 5.4 percent compounded annually.
Amount required to be invested $