Solve for k.
-3+ -2k = 7
k= ?

Which value of c would make he following expression completely factored? 8x+cy

What is the average rate of change for this function for the interval from x=2 to x=4 ?

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.