Pi is the sixteenth letter of the Greek alphabet, representing sound. In the system of Greek numerals it has a value of 80. It was derived from the Phoenician letter Pe (). Letters that arose from pi include Cyrillic Pe, Coptic pi, and Gothic pairthra ().
The 3 types of commercial drivers are Class A, B, and C licenses. 1  Class A Commercial Driverâs License â Combination Vehicle permit holder can drive all commercial vehicles or a combination of commercial vehicles with a gross weight of 26,001 lbs. or more.
Classes of Driver's Licenses. Non-commercial Driver's Licenses. CLASS A (minimum age 18): Required to operate any combination of vehicles with a gross weight rating of 26,001 pounds or more, where the vehicle(s) being towed is/are in excess of 10,000 pounds.