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April 28, 2015

Homework Help: math 12

Posted by kitkat on Saturday, November 27, 2010 at 10:03pm.

Seven year-old Sarah has nine crayons; three blue, one red, two green and three yellow.
a) In how many ways can she line up the crayons on her desk?
b) She is to pick up some of the crayons. How many different choices of some crayons could she make?

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