Answer:
The position of Michael's hands relative to the surface of the water is -1.3 meters.
Explanation:
The question is incomplete, so below is the complete question?
Michael is doing an underwater handstand. His feet are sticking up 0.5 meters above the surface of the water. Michael's hands are 1.8 meters directly below his feet. What is the position of Michael's hands relative to the surface of the water?
Now, to find the position of Michael's hands relative to the surface of the water.
Meters of Michael's hands directly below his feet = 1.8 meters.
Meters of his feet sticking above the surface of the water = 0.5 meters.
So, to get the position of Michael's hands relative to the surface of the water we subtract meters of Michael's hands directly below his feet from meters of his feet sticking above the surface of the water:

Therefore, the position of Michael's hands relative to the surface of the water is -1.3 meters.