I got 8 a) 0.2619B) 0.02688C) 0.97329)A) 1/5B) 1/20 explain

8. A committee is to be made up to discuss education in today's technological age. The committee is to consist of 7 people chosen from 8 students, 10 teachers, and 10 business executives. What is the probability that: a. there is exactly one student on the committee b. there are no teachers on the committee c. there is at least one teacher on the committee 9. Five different cases are to go before the honourable Judge Judy. Find the probability that: a. the case of "Jim Bob Blueneck" will be called first. b. the case of "Jed's damaged Pickup" and "Your Cheatn' Heart" will be the first two cases called