document.write( "Question 2224: How many 5-number license plates can be made using the digits 1, 2, 3, 4, 5, 6, 7 if repetitions are allowed? not allowed? \n" ); document.write( "
Algebra.Com's Answer #903 by khwang(438)\"\" \"About 
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If repetitions are allowed:
\n" ); document.write( " 7^5 = 16807
\n" ); document.write( "repetitions are not allowed?
\n" ); document.write( " P(7,5) = 7!/2!= 7*6*5*4*3 = 2520
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