In 2005, the average cost to construct a 140,000-barrel-a-day oil refinery was $2.5 billion (excluding any interest payments). This capital investment is spread uniformly over a five-year construction cycle (i.e., the refinery starts producing products in 2010). Assume end-of-year cash-flow convention and answer the following questions. a. If the cost of capital spent to build the refinery is 12% per year, how much interest will be charged (as a lump sum in 2010) during the construction of this project? b. If the cost-capacity factor is 0.91, what is the approximate cost to build a 190,000-barrel-a-day refinery in 2005? c. If inflation of the construction cost of a refinery is 9.1% per year, what is the estimated cost of building a 200,000-barrel-a-day refinery in 2015? Click the icon to view the interest and annuity table for discrete compounding when i = 12% per year. a. The interest will be s billion. (Round to three decimal places.) b. The approximate cost is $billion (Round to two decimal places.) c. The estimated cost of building is s billion. (Round to two decimal places.)