6) Which expression is equivalent to

50 - 2y + 7?

A. 2 (25 - y) + 7

B. 2 (25 + y - 7)

C. 10 (5 - 2y) + 7

D. 43 - 2y

I think the answer is a

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In the diagram below, QRS is an equilateral triangle and RT QS.

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