Question

Submarine Starfish is able dive at a rate of -3 3/4 meters per minute. After 8 minutes, what is the position of Submarine Starfish, if it started on the surface of the ocean?

Answer 1

It's at -30m.

Explanation:

Firstly, we do not know - we know what it's able to do, we know that it started on the surface, but nowhere does it say that it subsequently dove and whether it was at full throttle.

That said, assuming it was diving full throttle for 8 minutes starting at surface, it's been going down at 3.75m/min for 8 minutes, so at the end it's at the depth of

8min * 3.75m/min = 8 * 3.75m = 30m.