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Math

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30. Crafts. A circular coffee table has a diameter of 5 ft. What will it cost to have the
top refinished if the company charges $3 per square foot for the refinishing?

  • Math -

    The top area is pi*(D^2/4)
    Multiply that by $3 per sq ft

    D^2 means D-squared and equals 5x5
    "pi" = 3.1416

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