Liquid leaked from a damaged tank at a rate of r(t) liters per hour. The rate decreased as time passed and values of the rate at two-hour time intervals are shown in the table. t (hr) r(t) (L/h) 0 10.9 2 10.5 4 10 6 9.6 8 9.2 10 8.9 Find lower and upper estimates for the total amount of liquid that leaked out. lower estimate = liters upper estimate = liters Question Help: D Post to forum Submit