A submarine started at 750 meters below sea level. It rose 50 meters per hour over a 4-hour period. Which expression represents the new position of the submarine in relation to sea level?
The submarine now started at 750ms below sea level. If it rose 50 meters per hour period. And after 4 hours It will go to 200ms up. (50×4=200meters.) so, after 4hours it will be 750-200=550meters below the sea level.
