Which statement is true about the geometric figure that can contain these points

Which statement best describes the polynomial

The measure of one angle of an octagon is two times smaller that of the other seven angles. what is the measure of each angle?

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