1. There are 30 separate candidates for three vice-president positions at a university. Assuming all 30 candidates are qualified to be selected for any one of the three VP positions, how many different ways can the positions be filled?
2. Suppose a high school issues a student identification number (ID) that consists of two letters followed by six digits (zero through nine) to each student. Assuming repetition of letters and digits is allowed, how many unique student ID numbers are possible?