I really need help with this question. Please show all work and write neatly. Please don't use excel so, I can see the formulas.

-Thanks

For the following problems (12-15)use the information below Data for four mutually exclusive alternatives are given in the table below. Assume a life of 7 years and a MARR of 9%, Alt. A Alt. B Alt. C Alt. D Do Nothing Initial Cost $5,600 $3,400 $1,200 $0 EUAB $1,400 $1,000 $400 $0 Salvage Value $400 SO $0 $0 12. (4points) The AB /AC ratio for the first increment, (C-D) is? 13. (4points) The AB /AC ratio for the second increment, (B-C) is? 14. (4points) The AB/AC ratio for the third increment, (A-B) is ? 15. (10points) The best alternative using B/C ratio analysis is? Why? For the following problems (12-15)use the information below Data for four mutually exclusive alternatives are given in the table below. Assume a life of 7 years and a MARR of 9%, Alt. A Alt. B Alt. C Alt. D Do Nothing Initial Cost $5,600 $3,400 $1,200 $0 EUAB $1,400 $1,000 $400 $0 Salvage Value $400 SO $0 $0 12. (4points) The AB /AC ratio for the first increment, (C-D) is? 13. (4points) The AB /AC ratio for the second increment, (B-C) is? 14. (4points) The AB/AC ratio for the third increment, (A-B) is ? 15. (10points) The best alternative using B/C ratio analysis is? Why