Multiple ChoiceHow many options are there for license plates with any three letters (A-Z) followed by any 3 numbers (0-9)?
Multiple ChoicePhone numbers are 10 digits long. How many possible phone numbers are there if the 1st and 4th numbers can't be 0?
Multiple ChoiceHow many options are there for license plates with any three letters (A-Z) followed by any 3 numbers (0-9)?