I have 10 more mins on this test, anyone wanna help :3

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?

Is experimental probibilty the same as the observed frequency in math? i need the answer asap!

Which expression represents the total perimeter of her sandwich, and if x = 1.2, what is the approximate length of the crust?