Simplify the expression, using only positive exponents in your answer. 

A.
B.
C.
D. 4x - 28y2

Answer: A

Mathematics

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a.

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Write the number as indicated.An ocean covers approximately three million, six hundred sixty-nine thousand, seven hundred square miles. Write the number using digits.

A. 3,669,007 B. 3,669, 070 C. 3,669,700 D. 3,000,669,700

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Factor out the largest common factor.3n2 + 6n - 24

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