I'm pretty sure it's below sea level because the trench is much farther down than the height of the mountain so if you were to find the middle it would have to be below sea level... I hope this helped :0
Answer:
12-3= 9
9^2= 81
Step-by-step explanation:
As the statement indicates that diallo says that the value of 12-3 to the second power is 81, it means that he subtracted 3 from 12 which is equal to 9. Also, the value of 12-3 to the second power means that he calculed the value of 9 squared which is 81.
30,68,82
68,60,52
68,42,88