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31 July, 00:06

Ms. James has a 6-square foot bulletin board and a 12-square bulletin board. She wants to cover both boards with index cards without gaps or overlaps. Each index card has an area of 1/4 square foot. how many index cards does she need?

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  1. 31 July, 00:34
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    12+6=18

    18:0.25=72

    she need 72 index cards
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