Formula for finding side length of a cube

What is the distance between the points (2 -3) and (-6 4) on the coordinate plane

Which is the solution to the inequality? 2 3/52 1/15 b< 3 2/15 b> 3 2/15

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