Which one is compressed and which one is stretched. Need asap look at the picture

Can you decompose the numbers 20,740,6,000

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?

Using the side-splitter theorem, daniel wrote a proportion for the segment formed by luke segment de. what is ec?