Math question need help.

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

Find the value of tan theta if sin theta = 12/13 and theta is in quadrant 2

The classrooms are trying to raise $1,200.00 for charity. mrs. leblanc's class has raised 50%. mr. patel's class has raised $235.14 ms. warner's class has raised 1/3 as much as mrs. leblanc's class. how much more money is needed to reach the goal of $1,200.00?