Please answer it ASAP,please step by step

A machine is available for purchase for $10750. Maintaining the machine will cost $2300 for the first year. This will increase by $800 each year. It is expected that the machine could be sold for $4500 at the end of the first year, if it is no longer required. This will decrease by $1300 each year. The discount rate for the work that this machine will be involved with is 5%. The company can only use the machine for a maximum of 3 years. Number of years that the machine is used Annual Equivalent Capital Cost Annual Equivalent Maintenance Cost Annual Equivalent Salvage Value Annual Equivalent Total Cost 1 year 2 years 3 years What is the economic life for this machine? (No answer given) O1 year O2 years O3 years