character: Charlie the Calculator
topic: Using Linear Equations for Profit Analysis
grade: 9
subject: Mathematics
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character: Charlie the Calculator
topic: Understanding Variables in Profit Calculations
grade: 9
subject: Mathematics
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character: Charlie the Calculator
topic: Graphing Linear Equations for Business Applications
grade: 9
subject: Mathematics
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character: Charlie the Calculator
topic: Interpreting Slopes in Profit Margin Analysis
grade: 9
subject: Mathematics
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