If -1 is a root of f(x), which of the following must be true?

Volume of a cylinder with a radius of 13 in and height of 30 in

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?

1mile equals approximately 1.6 kilometers. which best approximates the number of miles in 6 kilometers?