The frequency of the radio wave is:

The wavelength of an electromagnetic wave is related to its frequency by the relationship

where c is the speed of light and f the frequency. Plugging numbers into the equation, we find

and this is the wavelength of the radio waves in the problem.
Answer:
i think number 2 should be your pfp
what do you need , i mean your help , let me see if i can help
a. Sweet corn and possibly d. okra.