A contest consists of finding all code words that can be formed from the letters in the word "alpha." Assume that the letter "a" can be used twice but the others at most once. A). How many 5-letter...

A contest consists of finding all code words that can be formed from the letters in the word "alpha." Assume that the letter "a" can be used twice but the others at most once.

A). How many 5-letter words can be formed? I got 60

B). How many two letter words can be formed? I got 13