Respuesta :

taskmasters
The answer is 5.0 m/s. It is asking for the SPEED of the wave, therefore, you need to know that speed = distance / time. You just simply divide 25 meters (distance) to 5.0 seconds (time) which will leave you the speed of 5.0 m/s. 
Gryski

Answer:

5.0 m/s

Explanation:

Distance/Time Taken