conversations.from: human
conversations.value: Solve the following math problem: Brittany got a 78 on her first test. After her second test, her average rose to an 81. What grade did she get on her second test?
conversations.from: assistant
conversations.value: First multiply her average grade by the number of tests she took to find the total number of points she scored: 81 points * 2 = 162 points
  Then subtract the number of points she scored on her first exam to find how many points she scored on her second exam: 162 points - 78 points = 84 points