If the numbers and letters can be repeated then there are 45,697,600 possible outcomes. If the letters and numbers can not be repeated there are 32,292,000 possible outcomes.
Using the [modern] Roman alphabet, there are 15600 possible passwords that are not case-sensitive.
36n where n is the number of digits allowed in the plate. If a blank space is acceptable as a digit, then that becomes 37n.
Without allowing repeated letters there are 38 possible words:GEEGHEEGLEELEGEREGERGREEVERGEHEELHELVEHEREEELLEELEERREELELVERLEVERREVELEREREEEVERVEEREVEVEEGELLEGERGREGVEGHEEHHERLLEHRHERELLEVERREREV
26. There are only 26 letters in the alphabet therefore there only 26 letters can be used but repeated hundreds of times.
No, there are 26 letters in the alphabet.
To make a sentence containing every letter once, you have to use names and abbreviations: Glum Schwartzkopf vex'd by NJ IQ.
the alphabet has 26 letters in it