Question

Dario was scuba diving 20 feet below sea level and then descended 20 feet more. Where is he now?

Answer 1

-40 feet below sea level

Explanation:

If Dario is at -20 feet relative to sea level, then descends 20 feet, add -20 (because they are descending) feet to -20 feet. -20+-20 simplifies to -20-20, which equals -40 feet below sea level.

Answer 2

40 feet below sea level

Explanation:

- 20 feet - 20 feet