The Leather Depot buys a coat from a supplier for $90 wholesale and marks up the price by 40%. If the retail price is $134.82, what is the percent of the sales tax being charged?

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.