t (hours) 0 1 5 8 10 G(t) (thousands of gallons) 22 18.5 19.5 22 24 A gasoline storage tank is filled by a pipeline from a refinery. At the same time, gasoline flows from the tank into trucks that will make deliveries to gasoline stations. The amount of gasoline in the storage tank at time t is given by the twice-differentiable function G, where t is measured in hours and 0 ? t ? 10. Values of G(t), in thousands of gallons, at selected times t are given in the table above. It is known that G”(t) > 0 for 5 ? t < 10 (a) Use the data in the table to estimate the rate of change of the amount of gasoline in the storage tank at time t = 3 hours. Show the computations that lead to your answer. Indicate units of measure. (b) For 0 < t < 10, is there a time t at which G(t) is increasing at a rate of 0.2 thousand gallons per hour? Justify your answer.