The circumference of the earth is given.  24,901

What is the diameter of earth? Round your answer to the nearest tenth. Use 3.14 for π.

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For each proportion find the unknown number x 1/5/8=×/15

Add the fractions, and simply the result to lowest terms. 2/3 + 2/7= ?

(05.08a)triangle abc is transformed to similar triangle a′b′c′ below: a coordinate plane is shown. triangle abc has vertices a at 2 comma 6, b at 2 comma 4, and c at 4 comma 4. triangle a prime b prime c prime has vertices a prime at 1 comma 3, b prime at 1 comma 2, and c prime at 2 comma 2. what is the scale factor of dilation? 1 over 2 1 over 3 1 over 4 1 over 5