The perimeter of a rectangle is 96 ft. the ratio of its length to its width is 7 : 5. what are the dimensions of the rectangle? . a.. 30 ft by 18 ft. b.. 28 ft by 20 ft. c.. 24 ft by 24 ft. d.. 22 ft by 26 ft

Let L and W be the lengths and width, respectively. With the given ratio of the dimensions, lengths may also be equal to 7W/5. The equation for the perimeter is,
                                    P = 2L + 2W
Substituting the values,
                                96 = 2 x (7W/5 + W)
The value of W is 20. Therefore, the dimensions are 20 ft x 28 ft. The answer is letter B.