Which of the following rates converts to unit rate of 2.99 per pound

For which rational expression is -2 an excluded value of x?

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

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.