Silverado Mining Company is analyzing the purchase of two silver mines. Only one investment will be made. The Yukon mine will cost $2,800,000 million, which will produce $560,000 per year in Years 5 through 15 and $1,120,000 per year in Years 16 through 25. The Labrador mine will cost $3,360,000 million and will produce $420,000 per year for the next 25 years. The cost of capital is 10 percent