Answer:
Darrel is 20 ft above sea level.
Step-by-step explanation:
We have been given that Darrel is currently 20 feet below sea level.
This means that Darrel's elevation would be [tex]-20[/tex] ft.
The opposite of Darrel's elevation would be negative of [tex]-20[/tex] ft.
[tex]-(-20)=20[/tex]
Since opposite of Darrel's current elevation is positive 20 ft, therefore, Darrel is 20 ft above sea level.
