(T/F) unknow values are represented with variables that can be any letter. which one true or false

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?

Is the power produced directly proportional to the wind speed, give reasons for your answer?

30 ! the graph shows the number of siblings different students have. select from the drop-down menus to correctly complete the statement.