Simplify. ÷  - 

A.  
B.
C.  
D.


Answer: B

Mathematics

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Solve.A boat can go 90 mph in still water. It takes as long to go 280 miles upstream as it does to go downstream 320 miles. How fast is the current?

A. 4 mph B. 5 mph C. 1 mph D. 6 mph

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Write in exponent form.6 ? 6 ? 6 ? 6

A. 24 B. 46 C. 62 D. 64

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Find the nth term of the geometric sequence.-4, -12, -36, -108, -324

A. an = -4 ? 3n-1 B. an = -4 ? 3n C. an = -4 ? 3n D. an = a1 + 3n

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Evaluate the polynomial.x2 + 3y2 + 2xy for x = 6 and y = 3

A. 117 B. 99 C. 72 D. 63

Mathematics