A dolphin went 15 feet below sea level to catch a fish. A shark went twice as deep, then swam down an additional 10 feet to catch a larger fish. Which expression represents the shark’s position in relation to sea level? 2 (negative 15) + (negative 10) 2 (negative 15) + 10 2 (negative 15) minus (negative 10) 2 (15) + (negative 10)