Use f(x)=-2x+5 to find x when f(x)=11

If a || b and b | y, then ? a) x || y. b) x | a. c) a | y. d) a || y.

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Quadrilateral efgh was dilated with the origin as the center of dilation to create quadrilateral e'f'g'h'. the quadrilateral was dilated using a scale factor of 2.5. the lengths of the sides of quadrilateral efgh are given. what is the length of side f'g'?