There are 4 possible letters to start with.
The pass word is 3 letters long.
The first letter can be A, B, C, D = 4 different letters.
The 2nd letter can be 4 - 1 = 3 letters ( Can't have repeats)
The 3rd letter can be 3-1 = 2 letters ( no repeats)
Number of possible passwords = 4 x 3 x 2 = 24
It is 5! you do 35 divided by 5 it is 7
2/8 or 1/4. 1/4 is just simplified. I hope it helps!
Answer:
the number is 8 andequation is 3x-5=19
