HELP
What is the value of x?

Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the correct position in the answer box. release your mouse button when the item is place. if you change your mind, drag the item to the trashcan. click the trashcan to clear all your answers. solve this quadratic equation using the quadratic formula. 2x2 - 2x=1 need asap

Find the domain of the following expression: 1/(√x)-2

If the scale factor between two circles is 2x/5y what is the ratio of their areas?