Mathematics Homework Help

I’m working on a probability question and need guidance to help me learn.

(a) Latoya is watching her favorite soccer team playing a match. The odds against her favorite team winning are 7/10. What is the probability of her favorite team winning?

(b) Brian entered a raffle to win a movie ticket. The probability that he wins a movie ticket is 8/11. Find the odds in favor of him winning a movie ticket?