Asea bird is 28 meters above the surface of the ocean. whats its elevation?

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 tan2a=cot(a+60), find the value of a, where 2a is an acute angle

Arational number that is equivalent to -20/4?