How do i explain? i don't get how

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

One integer is 8 times another. if the product is 72, then find the integers

Which of the following is closest to 32.9 x 7.5? a: 232 b: 259 c: 220 d: 265