A nursery operator is considering installing a wireless sensor network that will control irrigation automatically to keep moisture at a ?

A nursery operator is considering installing a wireless sensor network that will control irrigation automatically to keep moisture at a preset level. She currently uses 80,000,000 gallons of water a year. The automated irrigation system will cut water use by one-half. The system requires an initial investment of $50,000 and will last 25 years. The nursery operator can finance this investment over a 25-year period at a fixed interest rate of 10%, compounded annually.