Evaluate. 

A. 15
B. 5
C.
D. 30


Answer: A

Mathematics

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A. (-?, -2] ? [6, ?) B. [6, ?) C. [-2, 6] D. (-?, -2]

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A.

B.

C.

D.

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A. 200 × 10-5 B. 2 × 10-24 C. 20 × 10-4 D. 2 × 10-4

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