Answer:
The labor cost per unit is lowest for China and is $0.40 per unit
Explanation:
Country   Labor Wage per Day  Wages per   Production    Labor cost
         count    per labor     Day        units per day   per Unit
          L       w          W=L×w        P           l=W÷P
Myanmar    7      $2.50        17.50        38         $0.46
China       9      $2.00        18.00        45         $0.40
Billings/ Â Â Â Â 4 Â Â Â Â Â $57.00 Â Â Â Â Â Â 228.00 Â Â Â Â 102 Â Â Â Â Â Â Â Â Â $2.24
Montana
The labor cost per unit is lowest for China and is $0.40 per unit