Question

Please help me idk this

Answer 1

Answer:

+5

Step-by-step explanation:

If you think about it this way, sea level is like the middle ground, or 0

If you are at 0, and you swim 10 feet BELOW 0, you are now at -10

Your dolphin leaped 5 feet higher than 0 feet, so what is 0 + 5?

+5