Retirement planning personal finance problem hal thomas, a 35-year-old college graduate, wishes to retire at age 60. to supplement other sources of retirement income, he can deposit $2 comma 000 each year into a tax-deferred individual retirement arrangement (ira). the ira will earn a return of 12% over the next 25 years. a. if hal makes end-of-year $2 comma 000 deposits into the ira, how much will he have accumulated in 25 years when he turns 60? b. if hal decides to wait until age 45 to begin making end-of-year $2 comma 000 deposits into the ira, how much will he have accumulated when he retires 15 years later? c. using your findings in parts a and b, discuss the impact of delaying deposits into the ira for 10 years (age 35 to age 45) on the amount accumulated by the end of hal's 60 th year. d. rework parts a, b, and c assuming that hal makes all deposits at the beginning, rather than the end, of each year. discuss the effect of beginning-of-year deposits on the future value accumulated by the end of hal's 60 th year.