document.write( "Question 1182625: I keep trying over and over but can't get these right.. can someone explain what I have to do? It probably seems really simple to someone else..\r
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Algebra.Com's Answer #812717 by MathLover1(20850)\"\" \"About 
You can put this solution on YOUR website!
if she sell all \"N=140\" copies, we have
\n" ); document.write( "\"P=20N%2B1800\"
\n" ); document.write( "\"P=20%2A140%2B1800\"
\n" ); document.write( "\"P=4600\"\r
\n" ); document.write( "\n" ); document.write( "so, answer is:\r
\n" ); document.write( "\n" ); document.write( "description of values.........................................................set of values
\n" ); document.write( "domain: number of copies Rita has sold.........................\"N=140\" copies
\n" ); document.write( "range: Rita’s (total pay in dollars).............................\"P\"=$\"4600\"
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