Guy's this for ma sis show the working out
plzz

1)21/675
2)21/658
i cant be bothered

If kn = 9 cm, mn = 21 cm, rs = 42 cm, and ps = 18 cm, what is the scale factor of figure klmn to figure pqrs?

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10

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?