27. You are beginning to plan for retirement and have analyzed your personal budget. You start by concluding that you can afford to save $350 per month and believe that your investments can earn an average of 6.9% per year during the period you are saving. How long will you need to save in order to reach your goal? a. Excel command b. answer 27. You are beginning to plan for retirement and have analyzed your personal budget. You start by concluding that you can afford to save $350 per month and believe that your investments can earn an average of 6.9% per year during the period you are saving. How long will you need to save in order to reach your goal? a. Excel command b