A circular window has a diameter of 20 inches.
What is the area of the window?

What is this inequality notation? t is less then or equal to 2

The figure below shows rectangle abcd and the triangle eca on a coordinate plane.which of the following expressions represents the perimeter of triangle of triangle eca in units

Which steps could be part of the process in algebraically solving the system of equations, y+5x=x^2+10 and y=4x-10