If ally walks at an average speed of 2.72 mph, how long will it take her to walk 6.8 miles? math included plz

Me because some of question i don’t understand

Which basic geometric term has no width, no length, and no thickness? line b. point c. angle d. plane

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.