In a certain state, license plates consist of five digits from 0 to 9 followed by three letters. Assume the numbers and letters are chosen at random. Replicates are allowed. How many different license plates can be formed? I am confused as to how you calculate the total amount of ways for the digits and letters. I did a sample question and I understand that the 5 digits cumulate to 10 different ways digits can be formed. But I do not understand how to calculate it for the letters. I just don't understand how the math is done to get the solution