Answer:
80
Explanation:
Write and solve a compound inequality to model the possible length of the dog run.The inequality to model the possible length of the dog run is;. 100 ≤ 2.50x ≥ 200And the possible length of the dog run is 80ft.Minimum spending = $100Maximum spending = $200Cost per square feet = $2.50 letx = possible number of square feetThe inequality:100 ≤ 2.50x ≥ 200This means possible number of square feet constructed is greater than or equal to $100 or less than or equal to $200solve:100 ≤ 2.50x ≥ 200divide the inequality into 2100 ≤ 2.50xx ≤ 100/2.5x ≤ 40the other part:2.50x ≥ 200x ≥ 200/2.50x ≥ 80
Therefore,the possible length of the dog run is 80 feet