Questions 1-5. please, thank you.

Annual worth worksheet 1) Use Annual Worth with an MARR of 8% to determine which of the following mutually exclusive investment is the best. Boxen Initial investment Annual cost Annual benefit Salvage value Life Chipper 4000 1500 2000 200 6000 600 1500 1000 10 10 2) Use EUAC to choose between these three options for a machine cell. Use an interest rate of 8%. FR45 cell 25,000 5000 3000 Initial investment Annual cost Salvage value Life DF66 Cell 40,000 3000 1000 10 WV443 Cell 10,000 8000 3) Recently a bridge has been constructed and it requires periodic maintenance. The maintenance must occur every 10 years and will cost $500,000 each time. How much money should be set aside in a fund that earns 6% per year interest so that the amount will cover these maintenance costs forever? 4) Use Capital recovery to calculate the EUAC of an investment of $60,000 that will have a 15 year life at the end of which the asset can be sold for $5,000. Use a 10% interest rate. 5) Is there an instance where EUAC or EUAB will render a different decision than NPV? Why or why not