500 person took a dip in a rectangular tank which is 80 m long 50m wide what is the rise in water level of water in the tank of average displacement by a person is 0.04m^3

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?

Hi, can anyone show me how to do this problem? 100 points for this. in advance

Afair die is cast four times. calculate the probability of obtaining exactly two 6's round to the nearest tenth of a percent