Answer:
- 2
Step-by-step explanation:
Using the rules of exponents
[tex]a^{m}[/tex] ⇔ [tex]\frac{1}{a^{m} }[/tex]
0.25 = [tex]\frac{1}{4}[/tex] = [tex]\frac{1}{2^{2} }[/tex] = [tex]2^{-2}[/tex]
