Shen picks a rational number. what is true about the opposite of his number?
a. it is to the left of zero on a number line
b. it is the same distance from zero as his original number
c. it is located at zero on the number line
d. it will be farther from zero than his original number

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.