EASY BRAINLIEST PLEASE HELP!! -if you answer correctly ill give you brainliest which will give you 100pts-

(if you put links or don't answer accordingly im reporting your account)

solution given:

frequency[f]=215.0Hz

velocity[V]=x

wave length=2.4m

we have

wave length=

2.4m=

2.4×215=

x=516 m/s

velocity=speed =516m/s

low freq = 100 mhz

low wavelength =101.7m

length = 3x10^8/freq