Help me with this question pls and ty

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?

The circumference of a circle is 5 pi cm. what is the area of the circle?

Pls yall i really need the answer fr fr