Answer:
156m/s
Step-by-step explanation:
You can easily solve for this using the formula of the speed of a wave:
![v=f*\lambda](https://img.qammunity.org/2020/formulas/biology/middle-school/pxr90emgjo8ycq2vxk4e7552kx9s6e4bm8.png)
Where:
v = velocity/speed
f = frequency
λ = wavelength
In our problem we were given the following:
f=125Hz
λ = 1.25m
So we plug that into our formula:
![v=f*\lambda\\v = 125Hz*1.25m\\v=156.25](https://img.qammunity.org/2020/formulas/biology/middle-school/e0b0ltb64dr317id2ne3nfvpg3p7oraycs.png)
If we round to the nearest whole number, the answer would be 156 m/s.