Sum of equal angles is 360 1/3x+(x-20)+40+(x-10)

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

You have a square piece of cardboard that measures 14 inches on each side. to build a box, you cut congruent squares out of each corner of the cardboard. use the picture to find the area of the cardboard you were used to build the box

What is the radius of a circle with an area of 78.5 cubic inches? use 3.14 for pie