Agarden box has a perimeter of 27 1/2 feet. if the length is 9 feet ,what is the area of the garden box?

Perimeter=2 * lenght + 2 * width.

Data:
Perimeter= 27  1/2 ft=27.5 ft
lenght=9 ft

1)we have to calculate the width.
27.5 ft=2(9 ft)+2 width
27.5 ft=18 ft + 2 width
2 width=27.5 ft-18 ft
2 width=9.5 ft
width=9.5/2=4.75 ft

2) we calculate the area
area of a rectangle=length x width
area of this rectangle=9 ft * 4.75 ft=42.75 ft²,

the area of the garden is 42.75 ft²    (=42  3/4 ft²).

Perimiter=2(L+W)
27 and 1/2=P=27.5
L=9
27.5=2(9+W)
divide bot hsids by 2
13.75=9+w
minus 9
4.75=W

area=LW
area=9*4.75
area=42.75
ara=42 and 3/4 feet^2