3. Which of the following are isometries (rigid motions)? (Choose all that apply) (2 points) a) G (x, y) > (x – 2, y – 2) b) H (x, y) > (-y, x) c) H (x, y) > (x , 4y) d) D (x, y) > ( 3x, 3y) e) D (x, y) --- > (x + ½, y + ½ )

Quadrilateral abcd in the figure below represents a scaled-down model of a walkway around a historic site. quadrilateral efgh represents the actual walkway. abcd is similar to efgh. what is the total length, in feet of the actual walkway?

The anwser cause i do not understand just plez

Which expression is a perfect cube? a. x8 b. y24 c. m28 d. x64