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  v_desc[1] = "Step-by-step explanation of amortization for loan payment calculations.\r\n";

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  v_desc[2] = "Visualize how the relationships between fixed costs, variable costs, and revenue influence your business.\r\n";

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  v_desc[3] = "Understanding and applying Standard Deviation.\r\n";

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  v_desc[4] = "Calculating an average affected by volume.\r\n";



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