Answer:
b. 9 P(34,6)
Step-by-step explanation:
Since the 1st character of the number plate is the digit, therefore, there are nine possible ways to select them from digits 1 to 9.
And in the license plate there are 7 characters, the first character is counted before and the remaining 6 characters that can either be a digit or a letter has to be considered.
Now there are in total 34 symbols remaining form a total of 26 letters and 8 digits. They can be placed as 34x33x32x31x30x29 ways = P(34, 6) ways.
Therefore in total for all the characters there are 9 x P(34, 6) different ways.