How many distinct license plate “numbers” can be created that consist of two letters followed by four digits?

26 letters - 2 = 24 letters

choice of 24 letters for first letter
since letters can be repeated we have 24*24 = 576 letter combinations

now we have ten numbers, 0 through 9
again they can be repeated
(AA0000 is allowed)
10^4 = 10,000
so
576 * 10,000 = 5.76 * 1,000,000
= 5,760,000 

now answerd!