4. A couple will retire in 50 years; they plan to spend about 30,000 a year in retirement, which should last about 25 years. They believe that they can earn 8 per cent interest on retirement savings. If they make annual payments into a savings plan, how much will they need to save each year? Assume the first payment comes in 1 year. How would this change if the couple also realize that in 20 years they will need to spend 60,000 on their child's college education?

4. A couple will retire in 50 years; they plan to spend about 30,000 a year in retirement, which should last about 25 years. They believe that they can earn 8 per cent interest on retirement savings. If they make Innual payments into a savings plan, how much will they need to save each year? Assume the first payment comes in 1 year. How would this change if the couple also realize that in 20 years they will need to spend 60,000 on their child's college education? {30,00025=21750,000