document.write( "Question 1158510: Determine whether the given is a valid ISBN.
\n" ); document.write( "1. 978-0-281 44268-5
\n" ); document.write( "2. 978-1-55690-182-9
\n" ); document.write( "3. 978-0-671-51983-4
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Algebra.Com's Answer #781488 by greenestamps(13200)\"\" \"About 
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\n" ); document.write( "and just how is this math?!

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