document.write( "Question 889106: how many numbers are there between 100 and 1000 such that 7 is in the units place \n" ); document.write( "
Algebra.Com's Answer #537889 by Edwin McCravy(20055)\"\" \"About 
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document.write( "Inclusively, there are 99 integers from 1 through 99.  9 of these are \r\n" );
document.write( "1-digit integers, so that leaves 99-9 or 90 2-digit integers inclusively \r\n" );
document.write( "from 10 through 99. Tack on a 7 at the right end of each these 90 \r\n" );
document.write( "two-digit integers and we have the desired set of 3-digit integers with \r\n" );
document.write( "a 7 as the units digit..\r\n" );
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document.write( "Answer: 90\r\n" );
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document.write( "Edwin

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