California license plates have one number, then three letters, then three numbers.
How many possible CA license plates are there?
10 digits to choose from...
26 letters in the alphabet...
How many CA license plates are there that don't start with 0?
How many CA license plates are there that
|don't start with 0|
|don't contain the word "POO"?|
* Yes, they have to omit all license plates with bad words -- and things that look like bad words.