Math problem plz help

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.

Acircle has a radius of 12.6cm what is the exact length of an arc formed by a central angle measuring 120

The slope of the line whose equation is 2x - 1 = 0 is