document.write( "Question 99837: Karen works in retail computer store. She receives a weekly base salary of $300 plus commission of 3% of sales exceeding her quota of $20,000 per week. What are her sales for a week in which she earns $630.38? \n" ); document.write( "
Algebra.Com's Answer #72681 by checkley71(8403)\"\" \"About 
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.03(X-20,000)+300=630.38
\n" ); document.write( ".03X-600+300=630.38
\n" ); document.write( ".03X=630.38+300
\n" ); document.write( ".03X=930.38
\n" ); document.write( "X=930.38/.03
\n" ); document.write( "X=$31,012.67 IS HER TOTAL SALES.
\n" ); document.write( "PROOF
\n" ); document.write( ".03(31,012.67-20,000)+300=630.38
\n" ); document.write( ".03*11,012.67+300=630.67
\n" ); document.write( "330.38+300=630.38
\n" ); document.write( "630.38=630.38
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