ent 4 Question 14, 5.1.19 HW Score: 78.35%, 18.02 of 23 points Part 5 of 6 Points: 0.5 of 1 Save A tank is leaking at an increasing rate as indicated by the data below. Use the table to answer the following questions Time (hr) CO Leakage (gal/hr) 150 240 340 410 550 600 720 An upper limit estimate for the amount of material leaked after 4 hours is 800 gal. (Simplify your answer.) A lower limit estimate for the amount of material leaked after 4 hours is 490 gal. (Simplify your answer.) An upper limit estimate for the amount of material leaked after 8 hours is 3080 gal. (Simplify your answer. ) A lower limit estimate for the amount of material leaked after 8 hours is 2390 gal. (Simplify your answer.) If the leakage occurs at a constant rate of 720 gal/hr after 8 hours and the tank initially held 28,000 gallons of material, an estimate for the least amount of time for the tank to empty is INhr. (Round to the nearesthenth as needed.)