The diagram shows trapezium OACB. ОА = За OB = 6b AC = 4b
N is the point on OC such that ANB is a straight line.
Find ON as a simplified expression in terms of a and b.

The first hexagon is dilated to form the second hexagon select the answers from the drop box menus to correctly complete the statement

Match each expression with its simplified form.

The number if marbles of different colors stored in a hat is listed below: 4 red marbles 10 green marbles 7 blue marbles. without looking in the hat, dan takes out a marble at random. he replaces the marble and then takes out another marble from the hat. what is the probability that dan takes out a blue marble in both draws?