please help me complete the three parts

a) How much will George receive (capital plus interest) after one year if he invests at the oneyear rate? Round to the nearest one. b) How much will he receive (capital plus interest) after one-year if he invests for six months at a time at \3.5 each time? This means George took the interest from the first investment transaction and included it in the principal for the second transaction. Round to the nearest 100th. c) What would the one-year rate have to be to yield the same amount of interest when investing for six months at a time at \3.5 each time? Give your answer as a percentage approximated to the nearest \\( 100^{\\text {th }} \\)