You are trying to decide between two 3-D printers. Printer A costs $2000 to buy and costs $300 per year in maintenance and supplies and will last 5 years. Printer B costs $3000 and has an annual maintenance/supply expense of $200 and lasts 7 years. The effective annual interest rate is r = .05. Calculate the Equivalent Annual Cost of each. Which one is the best choice? Strategy: calculate the EAC for each project and pick the project with the lowest EAC.