You sell calculators at a base price of $63 each. To encourage volume purchases, you deduct $2 from the base price for each extra calculator purchased. So, if one calculator is purchased you charge $63. If two are purchased you charge $61 for each calculator. If three are purchased, you charge $59 for each calculator, and so on.
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A. What is the total amount you charge a customer who buys 5 calculators?
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B. What is the total amount you charge a customer who buys 6 calculators?
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C. Write a formula that gives the total amount C, in dollars, you charge a customer who buys n calculators.
What will be an ideal response?
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B. $318
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C. 
dollars
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