Answer:
![D= 375 - (-150) m = 375m +150 m= 525 m](https://img.qammunity.org/2021/formulas/mathematics/high-school/cxpyueby9tngz263mlrp9pd4qipuy83my5.png)
So then the distance between the submarine and the airplace is 525 m
Explanation:
For this case we know that the submarine is 150 m below the sea level and the airplane is 375 m above the sea level and we want to find the difference between the heights and we got:
![D= 375 - (-150) m = 375m +150 m= 525 m](https://img.qammunity.org/2021/formulas/mathematics/high-school/cxpyueby9tngz263mlrp9pd4qipuy83my5.png)
So then the distance between the submarine and the airplace is 525 m