Eric deposits 400 into a savings account at time 0, which pays interest at an annual nominal rate of i, compounded semiannually. Mike deposits 700 into a different savings account at time 0, which pays simple interest at an annual rate of i. Eric and Mike earn the same amount of interest during the last 6 months of the 15th year. Calculate i. 3.75% O 3.80% 0 3.90% 04.03% 04.13%