A dolphin is seen swimming at the surface of the ocean. The dolphin dives to 35.25 feet below the surface and then jumps 15.5 feet above the water surface,
Part A
What is the difference, in feet, between the dolphins highest and lowest positions?
-35.25+15.5
Part B
What is the total distance that the dolphin travels from the surface of the ocean,
down to its lowest point, then up to its highest point?
-35.25+15.5=-19.75 is