21.5010667479427 I goth this asnswer cause I divided I think that's how u do it
The first one is 2
The second is 1
The third is 6
And the fourth is 3
Answer:
Those are the answers to an unknown question???
Explanation:
Unit of measurement
ex: ft, in, etc.
1 wavelength, 2 crest, 3 trough, 4 wave height <3