Which shows a correct procedure to simplify 3V8?

One of the same side angles of two parallel lines is 20° smaller than the other one. find the measures of these two angles.

Asystem of equations has 1 solution.if 4x-y=5 is one of the equations , which could be the other equation ?

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.