I NEED HELP
A-2x-y
B- x^2/y
C-x^2-y
D- 2x/y

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

Polygon hh is a scaled copy of polygon gg using a scale factor of 1/4. polygon h's area is what fraction of polygon g's area?

The standard deviation for a set of data is 5.5. the mean is 265. what is the margin of error?