Answer:
D,A
Step-by-step explanation:
Answer: 1/1000
Step-by-step explanation:
1 * 10^-3 = 1 * 1/10^3 = 1/1000
The first digit of the password can be any of the ten digits - 10 possibilities.
A digit cannot be repeated, so the second digit can be any digit except the one you chose for the first digit - 9 possibilities.
The third digit can be any digit except the digits you chose for the first and second digit - 8 possibilities.
Using the rule of product:

There are 720 passwords.
300 miles
You would do 125/2.5= 50
Then you a would do 50*6=300
Answer:
C
Step-by-step explanation: