Solve 2 1/2 divided by 5 1/3 = 8/x

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

Which of the following can be used to explain a statement in a geometric proof?

Find the solution to this system 2,1 1,-2 1,2 -1,2