Question

How many possible answer combinations are there to a nine question multiple choice
test with five options per question ?

Answer 1

The 9 questions are like slots in my mind. In each slot, you place a 5 because you have 5 choices per slot. Then you multiply out all those 5's

in other words, you are computing 5*5*5*5*5*5*5*5

there are 9 fives in that sequence above

a shortcut is to compute 5^9