Nanette goes fishing. Of the fish Nanette catches, are catfish. She catches 12 fish that are not catfish.
Which equation and solution represent the total number of fish, x, Nanette catches?

What is the difference between regular convex and concave polygons

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.

Ametal rod is 2/5 meters long. it will be cut into pieces that are each 1/30 meters long. how many pieces will be made from the rod?