The formula for the perimeter of a rectangle is 2length + 2width
Since we already have the Perimeter and we have to find the width, the formula would be:
35.6=2*12 + 2x, Now lets solve for X.
35.6=24+2x, subtract 24 from both sides
11.6=2x, now divide both side by 2.
x=5.8
Hence, the width of the rectangle is 5.8ft