Abag contains 40 marbles, 4 of which are blue, 10 are red, 25 are green, and 1 is purple. shawna takes a marble out of the bag, records the color, and returns it to the bag. how many green marbles should she expect after 400 trials?

9.4.34  question   to estimate the height of a stone  figure, an observer holds a small square up to her eyes and walks backward from the figure. she stops when the bottom of the figure aligns with the bottom edge of the  square, and when the top of the figure aligns with the top edge of the square. her eye level is 1.811.81 m from the ground. she is 3.703.70 m from the figure. what is the height of the figure to the nearest hundredth of a  meter?