My wife and I always argue about the temperature in our house

My wife and I always argue about the temperature in our house. I like it at 281.0 K while she likes to set the thermostat to 305.0 K. As we take turns constantly changing the setting our poor heating and cooling system tries to keep up. I argue that it causes us to waste money. My living room contains 52 kg of air. In the summer time I pay about $0.15 per kWh of energy used. How much does it cost me every time we heat the air in the living room from 281.0 K to 305.0 K?(HINT: How many kWh does it take?)The heat capacity of our air is 1.01 J/(gC).