Please answer these ignore the answers already there

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?

Y+ 2/y is it a polynomial in one variable or not? and if so, why?

Find the length of the radius of a circle with the center at -7+2i and a point in the circle at 33+11i