Question

Question #8c623

Answer 1

It levels out at `965` feet below sea level.

Explanation:

First, let’s define below sea level as having a negative value.

So,

`150` feet below sea level `\implies\quad-150` feet

That’s the starting point. Since the sub descends `850` feet, that’s going to be a negative value.

So the sub is currently at `-150-850` feet, which is `-1000` feet.

If it rises `35` feet, that’s positive.

So the sub is now at `-1000+35` feet, which is `-965` feet.

`\therefore` the sub levels out at `965` feet below sea level.