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 6.5 %. The two guesses for the RORs are: 6% and 7% Construct the Incremental Cash Flow Diagram Determine the Incremental Annual Worth cash flow equation. Using incremental annual worth cash flow equation for the incremental rate of return analysis, select which machine (R or S) will be the best option