The cost required to operate a small solid$-$waste treatment plant is projected to be $$2\mathrm{.}2$ million at the end of the first year and increase by $$0\mathrm{.}1$ million each year thereafter. The best estimates indicate that the annual inflation$-$free interest rate will be $6\%$ and the general inflation rate will be $5\%$ per year. If the plant has a useful life of five years, what is the present equivalent worth of its fuel cost?

A cooling, heating, and power $($CHP$)$ system was placed in into operation. The financial facts related to the project are summarized as follows: installed cost: $$2\mathrm{.}5$ million; annual energy cost savings: $$786,000$; annual operation & maintenance costs: $$233,000$; project service life: $15$ years; salvage value: $$200,000.$ At an interest rate of $8\%$ per year, what is the $\frac{B}{C}$ ratio of this project? Is this project financially justified?