which expression has a base with an exponent of 4?

Question

is it 4*x*y, p+4, 3m^4 or 4z^3

Answer 1

3m^4

Answer 2

which expression is equivalent to 5^6?
is it 6*5, 25*5*5*5, 125*125 or 36*6*6*6

Answer 3

25*5*5*5