< The campus of a college has plans to construct a rectangular parking lot on land bordered on one side by a highway. There are 680 ft of fencing available to fence the other three sides. Let x represent the length of each of the two parallel sides of fencing. X H (a) Express the length of the remaining side to be fenced in terms of x. (b) What are the restrictions on x? (c) Determine a function A that represents the area of the parking lot in terms of x. (d) Determine the values of x that will give an area between 20,000 and 40,000 ft. (e) What dimensions will give a maximum area, and what will this area be? (a) The length of the remaining side to be fenced in terms of x is (Do not factor)