Respuesta :

Jakcie
A submarine can dive 35 feet every hour for 7 hours.

35 x 7 = 245 feet for 7 hours.

107 + 245 = 352 feet below the sea level.

The submarine started from 107 below sea level, so you have to add 107 to how many feet it dove in 7 hours.
Elijahsatchel58
Its 352 ft because 107+245=352 below sea level

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