Answer:

ANSWER: = 16

a=2

a^4= 2 x 2 x 2 x 2

If a= 2 and what's the value of a^4?

multiply 2 by itself 4 times like 2 x 2 x 2 x 2 that's the meaning of the exponent.

so 2 x 2 x 2 x 2 = 16