Simplify this expression.
3-(24-18)

1. a right triangle is graphed on a coordinate plane. find the length of the hypotenuse. round your answer to the nearest tenth. 2. use the angle relationship in the figure below to solve for the value of x. assume that lines a and b are parallel and line c is a transversal.

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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?