Whats 10+9-11+5-7+6+7

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 a graph with a never ending line called?

Someone me what is the area of this figure? 18m 18m 8m 16m