Sasha owns two investments, A and B, that have a combined total value of 39,600 dollars. Investment A is expected to pay 28,400 dollars in 1 year(s) from today and has an expected return of 10.15 percent per year. Investment B is expected to pay 21,792 in 4 years from today and has an expected return of R per year. What is R, the expected annual return for investment B? Answer as a rate in decimal format so that 12.34% would be entered as 1234 and 0.98% would be entered as .0098