9(a^2 b^2-ab) -6(ab+9ab^2) + (b^2-ab+a^2b^2)

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?

Sara can take no more than 22 pounds of luggage on a trip.her suitcase weighs 112 ounces.how many more pounds can she pack without going over the limit?

What is the volume of a cone with a height of 6 cm in the radius of 2 cm