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Math Help - hheeelllp basic math

  1. #1
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    Question hheeelllp basic math

    1)what is the perimeter in centimeter of an octagon?

    2) Tai went to a shoping mall he spent $25.75 on a shirt 15.49 on a hat and 9.95 on a poster before tax was 8.25%on all purchases what was the total cost of Tai's purchase including Tax?
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  2. #2
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    Quote Originally Posted by stephlova59 View Post
    1)what is the perimeter in centimeter of an octagon?
    Octagon has 8 sides. If each side is 1 centimeter then the perimeter which is the sum of all sides is,
    1+1+1+1+1+1+1+1=8 centimeters.
    2) Tai went to a shoping mall he spent $25.75 on a shirt 15.49 on a hat and 9.95 on a poster before tax was 8.25%on all purchases what was the total cost of Tai's purchase including Tax?
    25.75+15.49+9.95=51.19

    Now add 8.25 precent of that.
    8.25% of 51.19 = .0825 x 51.19 = 4.223175

    Now add (only need 2 digits because cents are up to 2 digits)
    4.22 + 51.19 = 55.41
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