Abag contains 1 yellow ball and 9 red balls . a ball is chosen at random from the bag . what is the best answer for the probability of drawing the yellow ball?

a) impossible
b) unlikely
c) very likely
d) certain

Thomas is using a drawing program to complete a construction. which construction could he be completing? two perpendicular lines are drawn. inscribing an equilateral triangle in a circle inscribing a square in a circle inscribing a regular pentagon in a circle inscribing a regular hexagon in a circle