document.write( "Question 173266: If a discount of 20% off the retail price of a desk saves Mark $45, how much did he pay for the desk? \n" ); document.write( "
Algebra.Com's Answer #128090 by Fombitz(32388)\"\" \"About 
You can put this solution on YOUR website!
20% of the retail price is the same as 20/100 of the retail price RP.
\n" ); document.write( "\"%2820%2F100%29RP=45\"
\n" ); document.write( "\"RP=4500%2F20\"
\n" ); document.write( "\"RP=225\"
\n" ); document.write( "\"PP=RP-45\"
\n" ); document.write( "\"PP=225-45\"
\n" ); document.write( "\"PP=180\"
\n" ); document.write( "Mark paid $180.
\n" ); document.write( "You could also have found it this way,
\n" ); document.write( "\"PP=%2880%2F100%29RP\"
\n" ); document.write( "\"PP=%2880%2F100%29225\"
\n" ); document.write( "\"PP=180\"
\n" ); document.write( "
\n" );