How far is the submarine from exact sea level at this point of time?
A submarine was situated 450 feet below sea level.¬† If it descends 300 feet for 1 hour, and then¬†rises 150 feet for the next 3 hours.
A. 400 feet below sea level
B. Exactly at sea level
C. 600 feet below sea level
D. 200 feel below sea level
This question is part of Integers: Positive and Negative Numbers