Find a proportion to find how many points a student needs to score on the test to get the given score test worth 75 points, test score of 96 percent

What is the length of the midsegment of a trapezoid with bases of length 15 and 25 ?

What is the value of x? enter your answer in the box.

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