document.write( "Question 433322: 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 #300372 by algebrahouse.com(1659)\"\" \"About 
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\"If a discount of 20% off the retail price of a desk saves Mark $45, how much did he pay for the desk?\"\r
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\n" ); document.write( "\n" ); document.write( "45 is 20% of what number?\r
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\n" ); document.write( "\n" ); document.write( "Use the forumula a = p(b)
\n" ); document.write( "a = part
\n" ); document.write( "p = percent {as a decimal}
\n" ); document.write( "b = whole\r
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\n" ); document.write( "\n" ); document.write( "45 = .2(b) {substituted into formula and changed 20% to a decimal}
\n" ); document.write( "b = 225\r
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\n" ); document.write( "\n" ); document.write( "The retail price was $225\r
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\n" ); document.write( "\n" ); document.write( "Subtract the $45 discount:
\n" ); document.write( "$225 - $45
\n" ); document.write( "= $180 is the price he paid after discount
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