A group of 5 men constructed a gray wall of 20 meters long and 2 meters tall in 10 hours. How many hours will it take for a group of 10 men to construct the same gray wall in the next week? PLEASE HURRY!!

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 of the following expressions are equivalent ?

In september, louise planted a tree. every month, the tree louise planted grew 2 inches. what would the constant of proportionality of the line be?