Simplify the expression. 3x2 + 2x(x + 5) + 3(5 – x)

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

Write a function for a rotation 90 degrees counter clockwise about the origin, point 0

Either enter an exact answer in terms of \piπ or use 3.143.14 for \piπ and enter your answer as a decimal.