Hi i am preparing my self for the p exam of soa
i have found difficulties in solving some sampling exercises if you can please help me.
These are the exercises:

1- two teams of baseball the american league team and the national team continue to play till one of them wins four games, how many different orders there are if the
series continue for 4 games? For five games? For six games? For seven games?

2-a poker hand is defined as drawing 5 cards at random without replacement from a deck of 52 playing cards find the following probabilities:
A)four of a kind (4 cards of equal face value and 1 card of a different value)
b)full house(one pair and one triple of cards with equal face value)
c) two pairs and one different card

thank you, if you can provide me with the methodology of thinking