at a grocery store , one pound of grapes cost $2.25 . in the following expressions, p presents any number of pounds of grapes. what expression represent the cost , in dollars, of pm pounds of grapes?

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.