PLSS HELP
Find the area of the triangle or quadrilateral

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?

Askate shop rents roller skates as shown on the table below. which graph and function models this situation?

Plz ( true - false) all triangles have interior angles whose measure sum to 90.