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Use this graph to answer the question.
-What was the total increase in sales from 2009 to 2010?
Materials
Raw elements or substances used in the production or manufacturing of goods.
Variable Costs
Costs that change in proportion to the level of output or activity.
Total Costs
The sum of all expenses associated with the production of goods or services, including both fixed and variable costs.
Output
The amount of goods or services produced by a person, machine, factory, or country.
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