Which equation will solve the following word problem? Four roommates share the cost of an apartment: rent, electricity, and gas. Rent costs $1200/month and gas costs $50/month. Each roommate pays $345/month. How much is the electric bill per month? ($1200 + $50)/4 = E + $345

($1200 + $50 + $345)/4 = E

($1200 + $50 + E)/4 = $345

($345)4 + E = $1200 + $50