Does anybody know this one?

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 quadratic function h(t)=-16.1t^2+150 choose the graph representation

What is the difference between the equations of a vertical and a horizontal line?