document.write( "Question 313489: Choose the next number in the sequence, 5, 8, 18, 21, thank you \n" ); document.write( "
Algebra.Com's Answer #224142 by JBarnum(2146)\"\" \"About 
You can put this solution on YOUR website!
my guess would b 31 then 34
\n" ); document.write( "5+3=8
\n" ); document.write( "8+10=18
\n" ); document.write( "18+3=21
\n" ); document.write( "21+10=31
\n" ); document.write( "31+3=34
\n" ); document.write( "
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