URGENT MATH HELP NEEDED PLEASE!!! WILL MARK BRAINLIEST!!!!

1. A bag contains the letters of the word “PROBABILITY”.

A. If a single tile is chosen at random, what is the probability the letter “B” is chosen? (Show your work).

B. If a single tile is chosen at random, what is the probability a vowel OR a “T”? (show your work).

C. If two tiles are chosen (with replacement) what is the probability of choosing an “O” and a “B”? (Show your work).