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anoter poster reproduces the Mona Lisa in the original size, but adds a 4 1/2 inch border around each side. What is the perimeter of this poster if the length is 30 3/10" and width is 20 7/8"?

  • math -

    p = 2(w+l)
    = 2(30 3/10 + 20 7/8)
    = 2(30 15/40 + 20 35/40)
    = 2(50 50/40)
    = 100 + 100/40
    = 102 1/2

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