I have no idea how to solve this? Can someone help?

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 the power produced directly proportional to the wind speed, give reasons for your answer?

What would the rule be for the reflection of y=-3