For this case we have:
The bird is at a positive distance of meters above sea level.
The dolphin is at a negative distance of 3.2 meters below sea level.
Being the surface of the sea the point 0, to find the vertical distance between the bird and the dolphin, we must add the module of each distance, that is to say:
Thus, the vertical distance between both animals is
Answer:
Option C: None of the above
