Express the integral f(x, y, z) dv e as an iterated integral in six different ways, where e is the solid bounded by the given surfaces.

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?

For the following geometric sequence, find the recursive formula. {-80, 20, -5, } i need : ')

Find cot x if sin x cot x csc x = √2