gfitori gfitori Today at 11:08 PM Advanced Placement (AP) Answered A house uses an average of 1.2 megawatt hours (MWh) of electricity per month. Electricity costs $0.13 per kilowatt hour (KWh). How much $ will the yearly electricity bill be? Hint - there are 1000 KWh in 1 MWh. Use dimensional analysis.