Answer:
we need to determine how many gallons of gasoline were pumped per minute.
the driver started pumping at 3:40 p.m., and the tank was full at 3:44 p.m. the time elapsed during this period is 4 minutes (3:44 - 3:40 = 4 minutes).
9.8 gallons were pumped during this 4-minute period.
verage rate of flow = Total gallons pumped / Number of minutes
= 9.8 gallons / 4 minutes=2.45
the average rate of flow of gasoline into the gas tank is 2.45 gallons per minute.