Does anyone know the answer

Identify the parent function that can be used to graph the function f(x)= (1/4x)^3

How do i start to solve? would appreciate a walk-thru! a bird sitting 16ft above the ground in an apple tree dislodges an apple. after how many seconds does the apple land on the ground? (assuming that no branches will interfere with it's fall)

Which is greater, 7 p 5 or 7 c 5? 7p5 7c5