please show work for 3&4

Problem 3 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% Initial cost, S Annual operating and maintenance cost, Sper year Machine R Machines 145000 .000 |-16000 28000 Annual revenues per year Salvape values Life, years $1000 35.000 10 61000 60.000 s a) Generate Incremental Cash Flow Estimates Table b) Construct the Incremental Cash Flow Diagram c) Determine the Incremental Annual Worth cash flow equation. d) 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 based on Incremental Rate of Return (AIRR) e) Solve the PW for each option and determine which option is the best Problem 4 (20) The process for producing integrated circuit for computer mother board has a first cost of $500,000 (initial investment at year 0) with annual cost $80,000 and revenue of $270,000 per year starting 5 years from now. In year 7, S25000 was given to the company by Environmental Protection Agency as credit for its environmental compliance. What is the payback period at a) 0% b) 11% Given the two guesses for Payback Period to be between 5 yrs and 6 yrs at 11 % besides 4 years of no expenses and no revenue