Answer: is (5^5)^4
Step-by-step explanation:
im inmiddle school but someone already answered this question befor trust me
Answer:

Step-by-step explanation:





He reads 1/11 book in 2/5 hour.
A whole book is 11/11 of a book.
Multiply by 11.
He reads 11/11 book in 11 * 2/5 hour.
He reads 1 book in 22/5 hour.
22/5 hour = 4.4 hour = 4 hours and 24 minutes