Assume that Social Security promises you $38,000 per year starting when you retire 45 years from today (the first $38,000 will get paid 45 years from now). If your discount rate is 8%, compounded annually, and you plan to live for 16 years after retiring (so that you will receive a total of 17 payments including the first one), what is the value today of Social Security's promise? The value today of Social Security's promise is $ (Round to the nearest cent.) You have an investment account that started with $2,000 10 years ago and which now has grown to $5,000. a. What annual rate of return have you earned (you have made no additional contributions to the account)? b. If the investment account earns 14% per year from now on, what will the account's value be 10 years from now? a. What annual rate of return have you earned