The volume of a cube is 216 cubic units. what is the length of each edge? explain how you know.

Volume = s*s*s = s^3
A cube have equal sides, the length is s the width is s and the height is s.

216 = x^3

x = cuberoot of 216

x = 6 units

You can find the area of a rectangle by multiplying the length and height. so multiply 1/2*7/4(which is the simpler version of 1 3/4) and you get 7/8 as your answer.