80 possible 2 digit passwords
5040 possible 4 digit PIN's with no repeats
can't see 7 to answer pls tell
In the inverse we replace the place of x by y .
I hope I helped you^_^
Answer:
358
Step-by-step explanation:
set this equal to zero.
subtract 100 from 18000
divide by 50
=358
The answer is c to your question