What is the domain of the function

What is the slope of the line that contains the points (4,8) and (9,8)? what type of line is it?

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?

Which of the following best describes the delian problem?