Answer:
1150 m
Step-by-step explanation:
Given that,
A dragonfish is swimming at -900 m relative to sea level.
It rises 250 m.
We need to find the dragonfish´s new depth relative to sea level. Let the new position is x. So,
x = 250-(-900)
= 250+900
= 1150 m
Hence, the new position is 1150 m.
