Do you have to pay for "electricity" and "water use" if you are using a single roomed college dorm?
and do you know how much it cost?
Utilities are included in your room and board. There is no extra cost.
Most dorms have electricity and water and heat provided with the price of living in the dorms. The only charge you might incur is if you want cable in your room. Although many college dorms now have that included also.