I'm having trouble with this homework question, I don't really trust sites like these but I don't have any other choice, so here it goes:

The sound of speed in water(25 degrees Celsius) is traveling at 1,500m/s.
How far can sound travel in water in 2.5 seconds if the water temperature is 25 degrees?

You can trust the fact that

distance equals velocity x time.

1500 m/s x 2.5 s = ___ meters

The quoted sound speed applies at the 25 C temperature that applies in this situation