document.write( "Question 452542: How many three-letter combinations are possible using the letters D,E,F,G and H? \n" ); document.write( "
Algebra.Com's Answer #311087 by Alan3354(69443)\"\" \"About 
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If repeats are allowed it's 5^3 = 125
\n" ); document.write( "If not, it's 5*4*3 = 60
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