Atrain travels at a speed of 85 mi/hr. how many hours does it take to travel 17,000ft?

Any is very appreciated! (picture is provided below)not sure how to do this at all won't lie

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.

Two variables, x and y, vary inversely, and x=12 when y=4. what is the value of y when x=3?