Its 20 oz when Hot as Venti means 20 in Italian. Although for cold beverages its 24 oz. Same is for Trenta cup, as Trenta means 30 in Italian. Trenta cup is reserved for cold beverages in Starbucks. Trenta cup = 30 oz cold beverage.
A utility bill would be a bill for your water, electric, gas, etc.
1 Usually, they're on the company's website or in their bill inserts or brochures.  Find out if your utility company offers a budget billing plan. This plan allows you to pay a flat fee each month for services and can help you budget your monthly expenses.