conversations.from: human
conversations.value: Find a solution for this math problem: Pria bought a new car that advertised an estimated gas mileage of 35 miles per gallon. The car has a 12-gallon tank. She filled her car full of gas and was able to drive a total of 372 miles. What was the difference, in miles per gallon, between Pria's mileage and the advertised mileage?
conversations.from: assistant
conversations.value: Pria's car achieved a rate of 372 miles / 12 gallons = 31 miles per gallon.
  Therefore, it was a difference of 35 - 31 = 4 miles per gallon.