3. In 2010, approximately 2.109 trillion text messages were sent, which is an increase from 56 billion in 2004. a. Write an exponential model representing the number of text message sent.
b. How could we change the model to show the number of text messages sent each week?
Can y’all help me

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.