How do i find the area of square centimeters

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?

Find the equation of the line with slope =8 and passing through (6,53) write your equation in the form y=mx+b

What is the area of the shaded sector?