Can you solve this as soon as possible please

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?

What is sin 7x/4 ? i need on this urgent trig

Find the difference (8ab+a+2) - (3ab+6)