A rectangle has a length of 9*k* m and a breadth of 2*n* m. Find

- its area in terms of
*k*and*n*, - its perimeter in terms of
*k*and*n*, - the area of the rectangle if
*k*= 3 and*n*= 9.

4 m

- its area in terms of
*k*and*n*, - its perimeter in terms of
*k*and*n*, - the area of the rectangle if
*k*= 3 and*n*= 9.

(4 m)

- its area in terms of
*k*and*n*, - its perimeter in terms of
*k*and*n*, - the area of the rectangle if
*k*= 3 and*n*= 9.

(4 m)

- its area in terms of
*k*and*n*, - its perimeter in terms of
*k*and*n*, - the area of the rectangle if
*k*= 3 and*n*= 9.