show work please

3. A city government is considering two types of town-dump sanitary systems. Design Arequires an initial outlay of $550,000 with annual operating and maintenance costs of $125.000 for the next 25 years, design B calls for an investment of $450,000 with annual operating and maintenance costs of $138.500 per year for the next 25 years. Fee collections from the residents would be $325,000 per year. The interest rate is 11%, and the salvage value for each system is $50,000. Which of the two systems would you select on the basis of the benefit-cost ratio on incremental investment (BCF)? moto