Answer:
(c) 714.96 = 21.6(w +4.7)
Explanation:
The area of the rectangular park will be the product of its length and width. This relation is used to write an equation to find the original width of the park.
Width
Let w represent the original width of the park in meters. The new width is 4.7 meters more, so is represented by (w +4.7).
Other dimensions
The length of the park is given as 21.6 meters. The area is given as 714.96 square meters.
Area formula
The various dimensions of the park are related by the area formula:
A = LW
714.96 = 21.6(w +4.7)