Twenty five percent of this square is shaded what percent of the square is not shaded

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.

How long does it take natsumi to clean up after she is done? table: .area time30. 245. 2.7560. 3.5

Over which interval is the graph of f(x) = x2 + 5x + 6 increasing?