Would you classify the number 55 as a perfect square, as a perfect cube, both, niether

Which expression is equivalent to 2x^2+2x-4/2x^2-4x+2

Classify the following triangle check all that apply

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?