Which is harder algebra 1 or algebra 2 or geometry or calculus.

Quick! what is the area of this trapezoid?

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 10 men take 18 days to mow 60 acres of grass, how long will 15 men take to mow 80 acres?