Work out the height of a triangle with a base 6cm and area 27cm2

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?

Standard deviation of 19,29,21,22,23

What value is a discontinuity of x squared plus 8 x plus 4, all over x squared minus x minus 6?