If a cube HAS A surface area OF 54 square inches what would the volume be?

Surface area of a cube = side * side * 6
SA = s*s*6

With the SA = 54, we get
54 / 6 = s*s
9 = s* s

s = square root of 9 = 3

Volume of a cube = s * s * s
3 cubed = 27

27 Cubic inches