Find The ratio of black cell phone covers sold to the total number of cell phone covers sold last week then explain its meaning

Find the slope of a line given the following two points

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.

Complete the solution of the equation. find the value of y when x equals -5. -4x - 8y = -52