A rich aunt has promised you $3,000 one year from today. In addition, each year after that, she has promised you a payment (on the anniversary of the last payment) that is 5% larger than the last payment. She will continue to show this generosity for 20 years, giving a total of 20 payments. If the interest rate is 5%, what is her promise worth today? ... The present value is $. (Round to the nearest dollar.)

Can you help me work out this problem in detail?   Ben wants to receive $6,000 a year for 10 years. How much must he invest today in an annuity that pays 7% annually?

Assume that Social Security promises you $43,000 per year starting when you retire 45 years from today (the first $43,000 will get paid 45 years from now). If your discount rate is 5%, compounded annually, and you plan to live for 17 years after retiring (so that you will receive a total of 18 payments including the first one), what is the value today of Social Security's promise? ... The value today of Social Security's promise is $ the nearest cent.) (Round to

your aunt plans to give you the following amounts on cash $1,100 six months from today, $3000 one year from today, $2,300 eighteen months from today, $1,800 twenty four months from today and $1900 thirty months from today. how much money will you have in total after the last cash payment if you invest these cash payments at a rate of 7%