conversations.from: human
conversations.value: Provide a step by step solution for the following math problem: Alexander was 50 inches on his 8th birthday. If he grows 1/2 a foot a year, how many inches tall will he be on his 12th birthday?
conversations.from: assistant
conversations.value: He grows six inches a year because 12 x .5 = 6
  He will grow 24 inches between his 8th and 12th birthday because 4 x 6 = 24
  He will be 74 inches tall because 50 + 24 = 74