Answer: n = 6
Step-by-step explanation:
The red dot(n) is on 6 so n =6
There are 36^7 different passwords available, incluiding ones that have repeated characters, are sequential characters, or are all the same letter or digit. Of these 26^7 are invalid. the probability of obtaining a valid password is
... 1 - 26^7/36^7 ≈ 0.8975
Some common factors are 2 and 4
140*.20=28
140-28= $112
so, the current price is $112
