I have 18 valuable baseball cards. The players on the cards come from 3 teams:10 from the Athletics, 6 from the Jays, and 2 from the Expos

I have 18 valuable baseball cards. The players on the cards come from 3 teams: 10 from the Athletics, 6 from the Jays, and 2 from the Expos

 

a) In how many distinct ways can I distribute the cards to my two kids so that each kid gets at least one card?

 

b) In how many ways can I distribute the cards to my two kids if each kid must receive one of the Expos cards and they both get the same number of cards?