5)

A submarine is 671 feet below sea level. If it ascends 218 feet and then descends 1363 feet, what is its new position?

A) 474 feet below sea level

B) 1,363 feet below sea level

C) 1,816 feet below sea level

D) 2,252 feet below sea level

1816 feet below sea level

Step-by-step explanation:

The deeper the submarine goes or descends, the higher its height below sea level.

The ascending of the submarine will be taken as negative while the descending will be taken as positive

So, 671-218+1363 = 1816ft below sea level