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.
The total bill is a combination of the monthly meter base fee (which is based on the size of the meter) and the amount of water used. For billing purposes, the Public Utilities Department measures water used by hundred cubic feet or HCF. Each HCF equals 748.05 gallons.