Simplify.(5x - 4y + 2) - 2(-5x + 4y - 2)

A. 10x - 8y + 4
B. -15x + 12y - 6
C. 15x - 12y + 6
D. -10x + 8y - 4

Answer: C

Mathematics

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Solve the problem.The Tasmanian House of Representatives has 435 members. A set of 3 leaders - a Speaker, a Whip, and a Secretary - must be selected. How many different sets of leaders can be selected?

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B. 4353
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Refer to the figure with B the midpoint of side AC and E the midpoint of side DF.



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