Answer:
-27 meters.
Step-by-step explanation:
The reason for this is that the scuba diver is already currently -6 meters down below sea level. If he goes another -21, the answer would be -27. Adding 2 negative numbers will result in another negative. So -6 + -21 is equal to -27.
27 meters
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c.i^ 3
i^7/i x i^3
i ^ 7 / i ^ 4
i^ 7 - 4
i^ 3
What is the rest of the question?