45% of Mr. Wiggins’s class loves the new Smartboard. He has 40 students in his class. How many of Mr. Pleaser’s students did not like the Smartboard?

For which rational expression is -2 an excluded value of x?

Evaluate 4 a for a = 5 2/3 . express your answer in simplest form.

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