Respuesta :
Answer:
4 m/s
Step-by-step explanation:
Take the number of meters and divide by the number of seconds
12 m/3s
4 m/s
					                   Her speed is 4m per second. Remember the formula for speed is Distance divided by Time 
					                
					                
					             Answer:
4 m/s
Step-by-step explanation:
Take the number of meters and divide by the number of seconds
12 m/3s
4 m/s