Answer: -11 meters
Step-by-step explanation:
so for the waters surface, we are going to call that 0. if bob is at 15 meters below 0, then -15+4=-11, so he would be at-11 meters in relation to the waters surface.
No don't pleeeeeeassssseeer
I think it’s 5 I used another app and it said -5,5 which I think you choose the positive number