The scale factor for two similar rectangles is 3. If the area of the smaller one is 8m^2, what is the area of the larger rectangle

A=lw

bigger one is

A' = (3l) (3W) or

A'=9lw

so the bigger one is 9 time of smaller

8*9=72

larger is 72m^2

The length of the smaller rectangle at the right is 1 inch less than twice its width. Both the dimensions of the larger rectangle are 2 inches longer than the smaller rectangle.