Susan invests $80,000 in an annuity contract that will pay her $4,500 per year for life beginning the next year. At that time she has a 20-year life expectancy.

a) In year 4, when she receives her $4,500 how much will be included in her AGI?

b) In year 21, when she receives $4,500 how much will be included in her AGI?

c) If after receiving his $4,500 in year 1, Susan were to die, how much return of capital would she have remaining?