I was given this by my teacher for extra credit
1 _ _ _ _ _ 1 _
the blanks are numbers from 0-9 excluding 1 since it was given. I need to know how many possible combinations are left and if there is a good website that will generate all the combinations. the numbers in the blank do not repeat.
Do i do 9c6 ? and that equals the number of combinations for the 6 spots ?