9. Compare two alternatives using i = 10% Alternative X First cost, $ 320,000 M&O costs, $/year 45,000 Benefits, $/year 110,000 Disbenefits, $/year 20,000 Life, years 10 Alternative Y 540,000 35,000 150,000 45,000 20 a) Which alternative should be selected? b) Calculate the option based on incremental value and justify? 9. Compare two alternatives using i = 10% Alternative X First cost, $ 320,000 M&O costs, $/year 45,000 Benefits, $/year 110,000 Disbenefits, $/year 20,000 Life, years 10 Alternative Y 540,000 35,000 150,000 45,000 20 a) Which alternative should be selected? b) Calculate the option based on incremental value and justify