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28 July, 21:56

Walt received a package that is 2 1/3 inches long, 6 3/4 inches high, and 8 1/2 inches wide. what is the surface area of the package.

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  1. 28 July, 22:09
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    SA=2 (LW+LH+WH)

    L=2 and 1/3=7/3

    H=6 and 3/4=27/4

    W=8 and 1/2=17/2

    SA=2 ((7/3) (17/2) + (7/3) (27/4) + (17/2) (27/4))

    SA=2 (119/6+189/12+459/6)

    SA=119/3+189/6+459/3

    SA=238/6+189/6+918/6

    SA=1345/6

    SA=224 and 1/6

    SA=224 and 1/6 in^2
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