Can someone tell me how you got the correct answer for these questions

What are the measures of ∠a, ∠b, ∠c and ∠d? explain how to find each of the angle measure.

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.

Iam at home. /: i am playing video games. translate the following statement into symbolic form.