Which expression is equivalent to 4^-5?

a. (4)(4)(4)(4)(4)
b. 1/(4)(4)(4)(4)(4)
c. (-)
d. -1/(4)(4)(4)(4)(4)

Since there is a negative exponent, you need to first convert that into a positive exponent which is going to be 1/4^5
Then, we can find out the answer by simply breaking apart the exponents into 5 groups of 4.
1/(4)(4)(4)(4)(4)
B

It’s 24.6 after you round to the nearest tenths the answer should be 25.0