<u><em>Hi there! :)</em></u>
<u><em>Answer:</em></u>
<u><em>=-16</em></u>
<u><em>*The answer must have a negative sign.*</em></u>
Step-by-step explanation:
<h2><u><em>Lesson: Zero and Negative Exponents</em></u></h2><h2>Zero exponent rule:
![a^0=1](https://tex.z-dn.net/?f=a%5E0%3D1)
</h2>
First, you multiply by exponents.
![2^4=2*2*2*2=16](https://tex.z-dn.net/?f=2%5E4%3D2%2A2%2A2%2A2%3D16)
It change positive to negative sign.
<u><em>Final answer is B. -16</em></u>
Hope this helps!
Have a nice day! :)
:D
-Charlie