33+34+35+36++104 what is the sum of the sequence?

A. 90 degrees b. 45 degrees c. 30 degrees d. 120 degrees

Which one is true about the hexagons ?

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