Explain the steps you would take to complete this conversion problem

The table shows the distance traveled over time while traveling at a constant speed.

What is the value of the expression below? (81^2)^1/8

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