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Define the terms effective dose and lethal dose.Explain how these might be used to calculate the therapeutic index of a drug.
Variable Cost
Expenses that change in proportion with the production activity of a business.
Fixed Costs
Costs that do not change with the level of production or sales, such as rent, salaries, or insurance.
Operating Income
Operating income is the profit realized from a business's core operations, excluding deductions of interest and taxes.
Variable Cost
Costs that change in proportion with the level of output or production activity.
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