If you have a 6 digit license plate, how many ways can you make a plate with the numbers or letters in any spot?

How many ways can you make one with the first two digits to be letters and the last 4 digits to be numbers? (no repeats)

How many ways can you make one with the first three digits to be letters and the last three to be numbers. (no tripple repeats of numbers or letters)

I'm sure you did at least one problem involving permutations and combinations. Come on, what did you try? Show us so that we know where you really are stuck.