Divide. 21,900 / 25. Enter the exact quotient

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Which of the following best describes the graph below? a. it is a function, but it is not one-to-one. b. it is a one-to-one function. c. it is not a function. d. it is a many-to-one function.

Of four points are collinear, they are also coplanar

The radius of the earth is two times the radius of the moon. what fraction of the volume of the earth is the volume of the moon?