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201700163

Answer: Down below

Step-by-step explanation:=(600-250)m=350m

ElroiNeedsHelp

Answer:

Step-by-step explanation:

The initial position of the submarine was 600 ft below sea level

Then it ascends, i.e., goes up or moves up 250ft.

So now it is (800–250=)550 ft below sea level. I hope this helps.