"What is the theoretical probability of rolling a prime number on a standard number cube?"

Shryia read a 481 -page-long book cover to cover in a single session, at a constant rate. after reading for 1.5 hours, she had 403 pages left to read. how fast was shryia reading? pages per hour how long did it take her to read the entire book? hours plz i realy need this

If a || b and e || f , what if the value of y ?

What is the simplified form of square root of 400 to the 100th power ?