Question

A dolphin was swimming 23 feet under the surface of the water. He rose 8 feet, then it dropped back down 4 feet. It rose 21 feet. what is the location of the dolphin now?

Answer 1

the dolphin would be 3 feet above the water

Answer 2

the dolphin would be 2 feet above the water.
-23+8= -15
-15+-4= -19
-19+21=2