document.write( "Question 866909: For a 5 digit number how many combinations are there if one number must repeat?
\n" ); document.write( "Also what about if two numbers must repeat?
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Algebra.Com's Answer #522590 by Fombitz(32388)\"\" \"About 
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If one number must repeat it's like a 4 digit number.
\n" ); document.write( "\"N=10%2A10%2A10%2A10=10000\"
\n" ); document.write( "If two numbers must repeat, it's like a 3 digit number.
\n" ); document.write( "\"N=10%2A10%2A10=1000\"
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