0ft elevation, diver is underwater at depth of 138 ft. in this area, the ocean floor has a depth of 247 ft. a rock formations rises to a peak 171 to above the ocean floor. how many feet below the top of the rock formations is the diver?

We know that the ocean floor has a depth of 247 ft, and we also know that the diver is underwater at depth of 138 ft, so its distance from the ocean floor will be:
ft

Now, the rock formations rises to a peak 171 to above the ocean floor, so to find how many feet below the top of the rock formations is the diver, we are going to subtract the distance to the driver form the ocean floor from the rock formations height:
ft

We can conclude that the diver is 62 feet below the top of the rock formations.