document.write( "Question 153917: \"20%21%2F%282%2118%21%29\" \n" ); document.write( "
Algebra.Com's Answer #113299 by checkley77(12844)\"\" \"About 
You can put this solution on YOUR website!
20!/2!18!
\n" ); document.write( "2.4329*10^18/2*6.4024*10^15
\n" ); document.write( "2.4329*10^18/1.2805*10^16=190 answer.\r
\n" ); document.write( "\n" ); document.write( "
\n" ); document.write( "
\n" );