17. Based on a study from the Chronicles of Flippin'' Awesomeness, the probability that Napoleon and Pedro make it to their first period class on time is 0.41. The probability that they make it to their first period class on time, given that they catch the bus is 0.63. The probability that Napoleon and Pedro catch the bus and make it to their first period class on time is 0.40. What is the probability that Napoleon and Pedro catch the bus?

18. Based on a study from the Chronicles of Flippin'' Awesomeness, the probability that Napoleon and Pedro make it to their first period class on time is 0.33. The probability that Napoleon and Pedro catch the bus is 0.48. However, the probability that they make it to their first period class on time, given that they catch the bus is 0.86. What is the probability that Napoleon and Pedro catch the bus and make it to their first period class on time?

19. Given P(A) = 0.85, P(B) = 0.02, P(C) = 0.25 and that events A, B, and C are independent, what is P(A, B, and C).