document.write( "Question 1173853: Betty has 20 different books.
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Algebra.Com's Answer #799200 by ewatrrr(24785) $\"\"$ $\"About$

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document.write( "Hi,
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document.write( "12novels, 6 SciFi, 2 ref  ( 20 Books)
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document.write( "7 classics novels, 2 Science fictions, and 1 reference book are selected, 
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document.write( " how many combinations are there?
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document.write( "   (12C7)(6C2)(2C1) = (792)(15)(2)= 23,760
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document.write( "Wish You the Best in your Studies.
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