$5450 is invested for 11 years at the following interest rates: j2=4.5% for the first 3 years; j12=6% for the next 4 years (following the first 3 years); and j365=7% for the final 4 years. a) Determine the accumulated value of the investment after 11 years. Answer: \$ b) What equivalent nominal rate, j4, was earned over the 11 -year period? Answer: %