The density of a certain material is such that it weighs 430 kilograms per cubic foot of volume. Express this density in grams per cup. Round your answer to the nearest whole number

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?

The lines shown below are parallel. if the green line has a slope of -1, what is the slope of the red line?

How do you use the elimination method for this question? explain, because i really want to understand!