Mr faizol wants to retire in 30 years at age 60.a) Assuming he can earn an annual rate of return of 9%, how much does he need to invest each year until retirement to accumulate $1.5mil by age 60? b) assuming the same return and he has a life expectancy of 80 years, how much can he then withdraw each year from his $1.5mil retirement fund starting one year after he turns 60?