Plot the bank balance from age 25 through 90 with these assumptions, calculating y0 the projected savings at retirement and T the age when your money runs out:

a = 4.66% APR

n = 15% savings so that nb is the dollar amount you will be saving during working years

b = $100,000 (constant, i.e., you wish to match this income during retirement, since it is the lifestyle to which you've become accustomed)

x0 = $0

t0 = 25 years old

p = 35% pension

q = 1-p so that qb is the investment income you will need during retirement

s = 57 (retirement age)