A snowboarders elevation in feet can be represented by the function y+50x=8000 , where x is in seconds

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.

1yd 1 ft = 1 1/12 1 1/3 1 1/2 1 1/6

Skie rented a boat for $16.50 per hour. her total rental fee was $49.50. for how many hours did skie rent the boat