Answer:
We have 3 students and 3 positions.
Angie (A), Bradley (B) and Carnell (C)
The total number of combinations can be calculated as:
For the president option we have 3 options:
For the vice president, we have 2 options because we already took one of the students for the president's place.
For the treasurer, we only have one option, so the number of combinations is:
3*2*1 = 6 we have 6 possible combinations; those are: