### Instruction: How many four-character license plates consist of a consonant, followed by a vowel, followed by a consonant, and then a digit? (For this problem, consider Y a vowel.).### Response: I need to count the number of possible choices for each of the four characters, and then multiply them together to get the total number of license plates.
For the first character, I can choose any consonant except Y, since it is considered a vowel.
There are 26 letters in the alphabet, and 6 vowels (A, E, I, O, U, Y), so there are 26 - 6 = 20 consonants.
For the second character, I can choose any vowel, including Y. There are 6 vowels to choose from.
For the third character, I can again choose any consonant except Y, so there are still 20 consonants.
For the fourth character, I can choose any digit from 0 to 9.
There are 10 digits to choose from.