document.write( "Question 859091: how many combinations are there in a four digit code from 1-9 and you can't use the same number twice \n" ); document.write( "
Algebra.Com's Answer #517549 by edjones(8007)![]() ![]() You can put this solution on YOUR website! 9*8*7*6=3024 \n" ); document.write( " |