Answer:
O 525 ft
Explanation:
If a submarine is initially situated 800 feet below sea level and it ascends 275 feet, its new position relative to sea level can be found by adding the ascent to its initial depth.
Initial depth: 800 feet below sea level = -800 feet
Ascent: +275 feet
New position relative to sea level = Initial depth + Ascent
New position relative to sea level = -800 ft + 275 ft
New position relative to sea level = -525 feet
So, the submarine's new position relative to sea level is -525 feet. However, since it has ascended, it is now 525 feet below the sea level.
Since distance can't be negative.
Therefore, the correct option is:
O 525 ft