Respuesta :

Answer:

I think it's B

Step-by-step explanation:

square root of 1/21 is smallest, then 1/5, then 4.15, then square root of 21

matthewmango12384
The ansewer is b
The square root of 1/21 means smaller then 1/21 and 1/21 is already the smallest. .20 or 1/5 is the second smallest and 4.5 is less then the square root of 21.

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