Someone do a Earthquake rap for me pls?

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?

A. 127 cm^2 b. 144.5 cm^2 c. 172 cm^2 d. 50 cm^2

What is x3+3x2−16x−48 divided by x−1?