you want to buy a new machine and you are considering two different models. the first model costs 365$ to purchase, requires maintenance cost of 163$ per year, and lasts for 5 years. The second model costs 565$ requires a maintenance costs of 126$ per year, and lasts for 8years.The discount rate is %23

a) what is the equivalent annual cost of the first model?

b) what is the equivalent annual cost of the first model?

C) which one do you prefer? Why?