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The cost C (in dollars) of making n feet of cabinet is represented by C = 18n + 45.

How many feet of cabinet are made when cost is $144?

The cost C (in dollars) of making n feet of cabinet is represented by C = 18n + 45. How-example-1

1 Answer

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The amount of board is 5.5 feet because 18*5.5=99 and 144-45 is 99.

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