Suppose each license plate in a certaln state has two digits, followed by two letters, followed by two digits. The letters Q and U are not used. So, there are 24 letters and 10 digits that are used. Assume that the letters and digits can be repeated. How many license plates can be generated using this format? | license plates

Users of the online system for a Bank are required to set a password that is 10 character-long. Each character can be a letter, a 1-digit number, or a symbol from the list: !, @, #, &, % How many passwords are possible if there is no distinction between upper case and lower case letters? (Not Case-sensitive) How many passwords are possible if the first and last digits have to be numbers?