16 + x = y Please help!

Will mark brainliest question in the pic.

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?

Write the point-slope form of the line passing through (2, -12) and parallel to y=3x.