conversations.from: human
conversations.value: Break down this math problem: When Mark bought his first tv it was was 24 inches wide and 16 inches tall. It cost $672. His new tv is 48 inches wide and 32 inches tall and costs $1152. How much more expensive as measure by cost per square inch, was his first TV compared to his newest TV?
conversations.from: assistant
conversations.value: His first TV was 384 square inches because 24 x 16 = 384
  His first TV cost $1.75 per square inch because 672 / 384 = 1.75
  His new TV is 1,536 square inches.
  It costs $.5 per square inch because 1152/ 1,536 = .5
  His old TV cost $1 more per square inch because 1.75 - .75 = 1