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  • Challenge Question #3

    Linda Thurber (
    Fri, 21 Feb 1997 20:18:18 -0400

    Fourth graders, David, Craig and Andrea from Ferrisburgh Central School
    say that there were 520 more manatees counted in January than February.
    This is a 23% change. We figured the percentage on our computers.
    Scientists didn't count as many in February because the clouds were
    blocking their view.