document.write( "Question 121086: i can't figure out how to come up with an answer to this domain:\r
\n" ); document.write( "\n" ); document.write( "1 | 2 | 3 | 4 | n
\n" ); document.write( "15 | 45 | 90 | 150 | ?\r
\n" ); document.write( "\n" ); document.write( "What is n?
\n" ); document.write( "or rather what is the Equation?
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Algebra.Com's Answer #88885 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
1 | 2 | 3 | 4 | n
\n" ); document.write( "15 | 45 | 90 | 150 | ?
\n" ); document.write( "--------------------------
\n" ); document.write( "? = 7.5n^2+7.5n
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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