
has y = 0 as a solution.
Selection B is appropriate.
Surface area is the total area of the surface. A cube has 6 surface, and each surface is the same. Each surface is a 11 by 11 square. Therefore there will be 6 11in. x 11in. surfaces. The math would be 11x11x6 =726.
78 * 3/4 hour,
it is 6 hours