Question

A scientist was in a submarine, 52.7 feet below sea level, studying ocean life. Over the next ten minutes, she descended 46.7 feet. How many feet was she now below sea level?

Answer 1

99.4 feet.

Explanation:

You'd add 52.7 and 46.7, including 52.7 because she was already 52.7 feet under before she went even deeper.