the length of a rectangle is twice as long as its width. the width is 104 inches.
find the perimeter of the rectangle.
If the width of the rectangle is 104 inches, then the length is twice as long, which means it is 2 * 104 = <<2*104=208>>208 inches.
The formula for calculating the perimeter of a rectangle is P = 2(l + w), where P is the perimeter, l is the length, and w is the width.
Plugging in the values, we get P = 2(208 + 104) = 2(312) = 624 inches.
Therefore, the perimeter of the rectangle is 624 inches.