Given:-
A scientist was in a submarine, 43.3 feet below sea level, studying ocean life. Over the next ten minutes, she dropped 29.6 feet.
To find:-
How many feet was she now below sea level?
So the submarine is 43.3 feet below the sea level.
After 10 min again it dropped 29.6 feet.
So to find the total deep we just need to add both the values,
![43.3+29.6=72.9](https://img.qammunity.org/2023/formulas/mathematics/college/mt5ltbe8hwuwu3vnqdv05a00mxc5mw5l07.png)
So the depth is 72.9 feet.