[
  "Draw a bar model: February = 1 bar, January = 2 bars of same length + an extra $120.40 segment.",
  "Subtract the difference from the total: $651.80 - $120.40 = $531.40 gives 2 units.",
  "1 unit = $531.40 ÷ 2 = $265.70 (February)."
]