Find y when x=14 if y varies directly with x2 and y=72 when x=6

Part a : solve - vp + 40 < 65 for v . part b : solve 7w - 3r = 15 for r show your work!

How far could you drive on 50 gallons of gas

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.