Answer:
The new elevation of the vessel will be (-475) feet.
Explanation:
Present elevation of submersible vessel = (-95) feet
Here minus sign denotes the level of vessel below the sea level.
If the submersible vessel descends to 5 times of the present elevation so the level by which the vessel will reach at = 5 × (95) feet
= 475 feet
But the sign will be NEGATIVE because the vessel is descending.
Therefore, the new elevation of the vessel will be (-475) feet.