Alta dove 9 meters below the ocean's surface. She then dove 15 meters deeper. She then rose 19 1/4 meters. What was her position in relation to the surface of the water?

She started out at 9 meters

Then when 15 meters deeper which put her at 24 meters deep

Then she rose 19 1/4 meters which would end up putting her at 4.75 meters deep in relations to the surface of the water.