Answer:18.4
Step-by-step explanation:
First write out your original equation.

Then use the law of exponents(power of a power) to simplify.

(Multiply the numerator and denominator exponents by the outside power.)
The answer is 4 to the 21st over 5 to the 6th.
Answer:
c i belive
Step-by-step explanation:
bec why not dude it seems to be self explanatory through the explanation
.