What is the Definition for alternate interior angles?

Hi, can anyone show me how to do this problem? 100 points for this. in advance

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.

Which word in the sentence below is an interrogative pronoun? who is picking us up from school? whousisfrom