practicing and need help so i can compare

a. The local Moose Lodge is holding a raffle to raise money for a local after school program. A local sports team donated a luxury box suite, with food and drinks, valued at $2000. The Moose Lodge sold 2275 tickets at $15 each. Carla bought 29 tickets. What is the probability Carla will win the luxury box?

b. A group of students were asked if they ever cheated on a test before. 443 responded "yes" and 228 responded "no." What is the probability that if a students is chosen at random, they have not cheated on a test?

c.. If 93% of houses have a smart TV and 12 households are surveyed, what is the probability that 10 households in the sample have a smart TV?