WHY
- (4x?y2 + 2xy? - 2y) – (-7x?y3 + 6xy2 – 2y)

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?

The angle of a triangle are given as 6x,(x-3), and (3x+7). find x then find the measures of the angles

Give the functions f(x) = |x + 2| - 3, what is the domain? a,b,c, or d all real numbers x > 2 x < -2 all real numbers and x cannot equal to 2