after this 120-second period , how much time,in seconds will it take for the scientist to travel back to sea level at the submarine's maximum speed of 4.8 feet per second?

Respuesta :

Unanswerable. How bout you give us the appropriate info before asking a question?

Answer:

Step-by-step explanation:

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Alright.

90*3.5 = 315ft

30*2.2 = 66ft

315-66 = 249ft

249/ 4.8 = 51.9 seconds

:3