3. There are three alternati Fee alternatives being considered. Each has a different life span and initial cost. First cost Annual cost per Alternative 1 Alternative 2 -2.000 Alternative 3 -20,000 -4.000 year -1000 -200 Annual income per year Life span 2,500 1,300 8.000 10 a) Write the AW equation for each alternative using only symbols (1.e. no numbers) b) Based on interest rate of 10% and an annual worth analysis, which alternative should you choose