Can you please tell me the answer I don't know ​

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.

Need asap. solve for the following inequality

What are linear equations? could'ya explain too me, ? ! and how do you see what graph is a proportional relationship?