In the figure, what is the value of z? a. 2.9 b.5.6 c. 6 d. 8.75
it is going to be b. 5.6

Adolphin is swimming with her friend. the dolphin jumps to a height of 4.54.54, point, 5 meters above the surface of the water as her friend swims 9.89.89, point, 8 meters directly below her. what is the position of the dolphin's friend relative to the surface of the water? meters