Answer
$Cost_{electricity}=2.592\frac{dollars}{month}$
Work Step by Step
The cost of electricity this TV consumes per month is:
$Cost_{electricity}=0.12kW*6\frac{h}{day}*0.12\frac{dollars}{kWh}*\frac{30days}{1month}$
$Cost_{electricity}=2.592\frac{dollars}{month}$