Canadian Metal, Mining, and Petroleum Company is analyzing two projects for possible investment. Only one investment will be made. The first project is an oil drilling project in Alberta at a cost of $580 million that will produce $116 million per year in Years 5 through 10 and $240 million per year in Years 11 through 20. The second project is an expansion of an aluminum smelter in Mapletree, Quebec, and will cost $580 million and will produce $103 million per year for Years 2 through 20. The cost of capital is 12 percent. a-1. Calculate the net present value for each project. (Round "PV Factor" to 3 decimal places. Do not round intermediate calculations. Round the final answers to the nearest whole dollar. Enter your answers in whole dollars, not in millions.) Net present value $ Oil wells Aluminum Smelter M $ a-2. Which investment should be made, if projects are mutually exclusive? O Oil wells Aluminum Smelter a-2. Which investment should be made, if projects are mutually exclusive? O Oil wells O Aluminum Smelter b-1. If the oil-well project justifies an extra 3 percent premium over the normal cost of capital because of its riskiness and relative uncertainty of flows, recalculate the net present value of the mine. (Round "PV Factor" to 3 decimal places. Negative answer should be indicated by a minus sign. Do not round intermediate calculations. Round the final answer to the nearest whole dollar. Enter your answers in whole dollars, not in millions.) Net present value $ Oil wells b-2. Does the investment decision change? O Yes O No