What's the measure of an arc with a central angle of 120°?

Abag contains 4 red, 7 blue and 5 yellow marbles. event a is defined as drawing a yellow marble on the first draw and event b is defined as drawing a blue marble on the second draw. if two marbles are drawn from the bag, one after the other and not replaced, what is p(b|a) expressed in simplest form? a. 7/16 b. 7/15 c. 14/16 d. 14/15

Which value of m will create a system of parallel lines with no solution? y= mx - 6 8x - 4y = 12

Car a and car b were in a race .the driver of car b claimed that his car was twice as fast as car a