Ineed to know how to prove if an angle is congruent or not.

Which point is a solution to the inequality shown in this graph (-3,-3)(3,-1)

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?

Write the sentence as an equation. b increased by 281 is d