Rectangle abcd is rotated 180°. what rule shows the input and output of the rotation, and what is the new coordinate of a′? (x, y) → (−x, −y); a′ is at (5, −1) (x, y) → (−y, x); a′ is at (−1, −5) (x, y) → (y, −x); a′ is at (1, 5) (x, y) → (x, −y); a′ is at (−5, −1)

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.

Someone answer asap for ! the following statements are true about the coins calvin and sasha have collected. * calvin and sasha has the same amount of money. * calvin has only quarters. * sasha has dimes, nickels, and pennies * calvin has the same number of quarters as sasha has dimes. * sasha has $1.95 in coins that are not dimes. exactly how many quarters does calvin have?

If there is 20 dogs in the shelter and 5 dogs get homes, and then 43 more dogs come. how many dogs are there in the shelter?