This diagram shows a convex polygon.

What is the value of a?

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Ican figure out 20 shares multiply by $117.98 =2359.6920 shares multiply by $124.32=2486.40then take 40 shares multiply by $128.48=5139.20after that i'm lost any be greatly appreciated.

Find the value of x for which abcd must be a parallelogram -9-6x x-30

Polygon abcde is reflected to produce polygon a′b′c′d′e′. what is the equation for the line of reflection?