Whats this? i dont pay attention okay thx

Divide. write in simplest form 41/6 divided by 10

Abag contains 3 red marbles, 2 blue marbles, and 2 green marbles. one marble is picked, then another marble. assume that the selections are made with replacement. a) find the probability of picking two red marbles with replacement. b) find the probability of picking a red marble and a blue marble. assume the selections are made without replacement. c) find the probability of picking two red marbles without replacement. d) find the probability of picking a red marble and a blue marble without replacement.

Can someone me with #s 8, 9, and 11. with just one of the three also works. prove using only trig identities.