One more rectangular-shaped piece of metal siding needs to be cut to cover the exterior of a pole barn. the area of the piece is 30 ft². the length is 1 less than 3 times the width. how wide should the metal piece be? round to the nearest hundredth of a foot.

a.) 3.33 ft
b.) 4.3 ft
c.) 1 ft
d.) 30 ft

Let w be the width of the rectangle. With this representation, length becomes 3w - 1. The area of the rectangular figure is,
                                  A = L x W
where L and W are length and width, respectively. Substituting the known values,
                              30 ft² = (3w - 1)(w)
The value of w from the equation is 3.33 ft. 

Ithink it's b sorry if i'm wrong