Answer :
Answer:
-30 feet
Step-by-step explanation:
If ground level is 0, and the dolphin goes 30 feet below 0, then the dolphin's elevation is -30 feet.
Answer:
-30 feet
Step-by-step explanation:
If ground level is 0, and the dolphin goes 30 feet below 0, then the dolphin's elevation is -30 feet.