Please help, thank you!!!

3. (7 marks) A farmer is considering the installation of a fuel storage system that will save $0.02 per litre because the fuel can be purchased in bulk. The farmer uses about 75,700 litres per year. The system will cost $10,000 to install. The annual operating and maintenance costs will be $250 in the first year and will increase by 10% each year thereafter. After the 10 years that the system will be used it will have a salvage value of $3000. The farmer's required return is 12%. What is the equivalent uniform annual benefit for the fuel storage system? Based on this analysis, should the farmer purchase the fuel storage