Someone plz help if u know this

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?

Iam a rectangle. my perimeter is 60 feet. how much are do i cover?

The suare root of 9x plus 7 plus the square rot of 2x equall to 7