In many cases, a credit card company will charge a percentage of the balance on the card as the minimum monthly payment. If you have a $1,000 balance and a 2% minimum, you will owe at least $20 for the month. Part of that money will go toward interest, and a tiny portion of it will go towards your principle.
The Prothonotary is the clerk of the court of common pleas and keeps records of all civil procedures before the courts, signs all writs and processes (such as suits) and files copies of all records and processes.
The president pro tempore of the Senate is the second-highest official in the United States Senate, after the vice president, who is the president ex officio of the Senate. Typically, the person holding this position is the senior senator of the majority party, and the highest ranking member of the Senate as a result.