document.write( "Question 523226: A classroom building has 7 different doors. In how many ways can a student enter by one door and exit by a different door? \n" ); document.write( "

Algebra.Com's Answer #347291 by deborabr(181) $\"\"$ $\"About$

You can put this solution on YOUR website!
enter 7
\n" ); document.write( "exit 6
\n" ); document.write( "7*6=42 ways \n" ); document.write( "

\n" );