Seth watched 14 episodes of his favorite tv show in 10.5 hours. he spent the same amount of time watching each episode. what is the unit rate of hours to episodes? remember to include units! (example: 0.3 hours per episode)

Solve the following pair of equations for x and y: ax/b_ by /a= a +b; ax - by = 2ab

In a singing competition, there are 150 participants. at the end of each round, 40% of the participants are eliminated. how many participants are left after n rounds?

Awoman has 14 different shirts: 10 white shirts and 4 red shirts. if she randomly chooses 2 shirts to take with her on vacation, then what is the probability that she will choose two white shirts? show your answer in fraction and percent, round to the nearest whole percent.