John wants to form 5 digit numbers from the set of integers from 0 to 9 inclusive. Assuming he can reuse numbers, and the 5 digit number must start with and 8 and end with a 0, how many different numbers may he form?
The first number must be an
The second number can be anywhere between
The third number can be anywhere between
The fourth number can be anywhere between
The fifth number must be a
We multiply these possibilities to get