If go to the store, but your mom/dad says don't touch anything does that mean you have to float in the store?

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?

If f(x) = 3x2 - 2x+4 and g(x) = 5x + 6x - 8, find (f-g)(x).

According to the general equation for conditional probability if p(anb)=3/7 and p(b)=7/8 what is p(a i b)