I need th know the answer of my problem

Simplify the expression 10/11(22z) + (a+5) -1

In the figure below, ∠dec ≅ ∠dce, ∠b ≅ ∠f, and segment df is congruent to segment bd. point c is the point of intersection between segment ag and segment bd, while point e is the point of intersection between segment ag and segment df. the figure shows a polygon comprised of three triangles, abc, dec, and gfe. prove δabc ≅ δgfe.

Find the measure of angle y. a. 115° b. 65° c. 43° d. 22°