document.write( "Question 635066: From 4 red, 5 green, and 6 black ball pens, how many selection of 9 ball pens are possible if 3 of each color are to be selected? \n" ); document.write( "

Algebra.Com's Answer #400091 by ewatrrr(24785) $\"\"$ $\"About$

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document.write( "Hi,
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document.write( "From 4 red, 5 green, and 6 black ball pens,
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document.write( "3 from each color selected
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document.write( "  ways of selecting the nine pens 
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document.write( "nCx =  \n" );
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