Answer:
380 feet below sea level.
Explanation:
Given:
A submarine is is 250 feet below sea level.
It descended another 130 feet.
Question asked:
How many feet below sea level is the submarine now?
Solution:
A submarine is initially below the sea level = 250 feet
Another descend below the sea level = 130 feet
Now, we have to calculate the final level of submarine below the sea level and for it we will simply add initial level to the another descended depth:-
250 feet + 130 feet = 380 feet.
Therefore, submarine is now 380 feet below sea level.