Question

Possible grades for a class are A, B, C, D, and F. (No +/−'s.)

How many ways are there to assign grades to a class of nine students?

Answer 1

Take the first student. How many choices do you have for his grade? A,B,C,D,F. So 5.
Take the second student. How many choices again? 5
So 5 x 5 x 5 x 5 x 5 x 5 x 5 x 5 x 5

Answer 2

5^9?

Answer 3

thx sir