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Hello. Please provide a complete solution (no shortcuts ), write clearly and please draw the graph thank you very much. Keep safe.

draw a graph if it is needed*

National Homebuilders, Inc., plans to purchase new cut-and-finish equipment. Two manufacturers offered the estimates below. Vendor Vendor A B FC - 15000 - 18000 OC -3500 -3100 SV 1000 2000 L 6 9 a. Determine which vendor should be selected on the basis of a present worth comparison, if the MARR is 15% per year. b. National Homebuilders has a standard practice of evaluating all options over a 5-year period. If a study period of 5 years is used and the salvage values are not expected to change, which vendor should be selected