Answer: 

Explanation:
We can re-write 4^-5 as 
 . This is because when we have a negative number as an exponent we flip the fraction (
. This is because when we have a negative number as an exponent we flip the fraction ( 
 →
 → 
 ) and turn the exponent into it's positive form.
 ) and turn the exponent into it's positive form. 
 ·
 · 
 ·
 · 
 ·
 · 
 ·
 · 
 =
 = 

(4 · 4 · 4 · 4 · 4) = 1024 then just put a one over it.
Hope this helps!