Find the coordinates of the midpoint of the segment whose endpoints are h(8, 13) and k(10, 9)

Need on this one asap im almost done with this subject

If abcde is reflected over the x-axis and then translated 3 units left, what are the new coordinates d?

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