Answer:52.14
Explanation:
Paula started in the boat at 12 feet above sea level and then dove 15.8 feet into the water, so she was 12 + 15.8 = <<12+15.8=27.8>>27.8 feet below sea level.
After getting used to her gear, she dove another 24.34 feet, so her final depth was 27.8 + 24.34 = <<27.8+24.34=52.14>>52.14 feet below sea level. Answer:{52.14}.