What is 12+45(3-8) because I’m confused plz help

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

Does anyone know how to do geometryme with this problem

Write the expression as a single natural logarithm. 2 in a - 4 in y