Help please this is a test grade

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?

An arc subtends a central angle measuring 7pi/4 radians what fraction of the circumference is this arc?

Select all the expressions that will include a remainder.