(Q3): West Penn Power can build at most 2 new power plants, each capable of producing 10 MW per month. Plant 150 k$ fixed cost to build, plus 20 k$ for every MW produced Plant 275 k$ fixed cost to build, plus 15 k$ for every MW produced Plant 3 150 k$ fixed cost to build, plus 5 k$ for every MW produced = The first month's demand of 18 MW must be met, while keeping the total cost for the first month to a minimum. Which plants should be built and how much should each one produce? Show your model and solve it with XL.