A recipe for sparkling grape juice calls for 1 11 quarts of sparkling water and
quart of grape juice.
How much sparkling water would you need to mix with 9 quarts of grape juice?
Do not include units (quarts) in your answer.

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.