Which rule represents Ro, 180°?
O (x, y) → (-y, x)
O (x, y) – (-x, -y)
O (x, y) → (y, -x)
O (x, y) → (y, x)

Ifigured out the question and i dont know what to put here

Rachel reads 1/5 of the pages of a book plus 12 pages on the first day. on the second day, she reads 1/4 of the remaining pages plus 15 pages. on the third day, she reads 1/3 of the remaining pages plus 18 pages. on the fourth day, she reads the remaining 70 pages. how many total pages are in the book?

Which statement accurately explains whether a reflection over the x-axis and a 180° rotation would map figure acb onto itself?