document.write( "Question 1136715: The selling price of a video play is $420. The profit is 25% of the cost find the cost. \n" ); document.write( "
Algebra.Com's Answer #754511 by Boreal(15235)\"\" \"About 
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cost is x
\n" ); document.write( "sales price is 1.25 x to give profit of 25%
\n" ); document.write( "1.25x=420
\n" ); document.write( "x=$336 cost
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