document.write( "Question 617394: 12. Which set is infinite?
\n" ); document.write( " {x | x ∈ N and x < 20}
\n" ); document.write( " {x | x is an improper fraction}
\n" ); document.write( " {3, 5, 7, . . ., 99}
\n" ); document.write( " Ø
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Algebra.Com's Answer #388305 by jim_thompson5910(35256)\"\" \"About 
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Not sure about choices A and D because the text is garbled. But it looks like choice B since there are indeed an infinite number of improper fractions. \n" ); document.write( "
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