I have no idea how to solve this pls help

Identify the parent function that can be used to graph the function f(x)= (1/4x)^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?

The holiday party will cost $160 if 8 people attend.if there are 40 people who attend the party, how much will the holiday party cost