Engineering economics homework please help

Problem 2 The TT Racing and Performance Motor Corporation wishes to evaluate two alternative machines for NASCAR motor tune-ups. The MARR adopted by TT Racing is 65% The two guesses for the RORs are: 6% and 7% Initial cost,S Annual operating and Machine R -145000 -16000 Machine S -80,000 28000 maintenance cost, $ per year Annual revenues per year Salvage value, s Life, years 61,000 000 35,000 10 20,000 Skip the Do-Nothing and proceed straight to comparing the two option a) Generate Incremental Cash Flow Estimates Table b) Construct the Incremental Cash Flow Diagram c) Determine the Incremental Annual Worth cash flow equation