For each project, you must calculate the Net Present Value, the Equivalent Uniform Annual Worth, and the Internal Rate of Return. While the team at NICO is confident they can secure a 10% financing rate, the team of engineers has decided to solidify their analysis by analyzing what would happen under different financing scenarios. They have found that NICO has been able to fund projects with an interest rate as low as 7.5% but never higher than 11%. Conduct the analysis with a range of interest rates from 7.5% to 11% (with a 0.5% increment).

You also believe that 20 years is not the appropriate planning horizon for projects of this magnitude. You believe that 30 years is more appropriate for projects B and C and 40 years for projects A and D. Under these conditions, each project will require additional maintenance every 10 years (not including the last year of operation) equal to 5% of the initial investment. Furthermore, the salvage received at the end of the horizon period will equal 80% of the original salvage value. You need to estimate each projects cash flows under these new constraints as well as estimate the appropriate decision criteria.