Answer:

Explanation:
Given that:
Distance traveled by seal to catch the fish = 15 below sea level
Sea lion wanted to catch a larger fish so sea lion dove 6 feet lesser than two time the distance that the seal traveled.
To find:
The expression to represent the position of the sea lion in the sea.
Solution:
If the distance traveled by seal is represented by
then as per the question statement:
Twice of
=

6 lesser than twice of
=
- 6
Now, putting the value of
= 15
Therefore, the expression to represent the sea lion's position w.r.to sea level.
