When writing a repeating decimal as a fraction, why does the
fraction always have only 9s or 9s and Os as digits
in the denominator?

At a book fair, joe bought 24 books at 3 for $5 and had $2 left. how much money did he have at first?

Use the method of cylindrical shells to find the volume v generated by rotating the region bounded by the given curves about y = 8.8y = x3, y = 0, x = 4use the method of cylindrical shells to find the volume v generated by rotating the region bounded by the given curves about y = 8.8y = x3, y = 0, x = 4

What does the pair of equations y = 1, z = 8 represent? in other words, describe the set of points (x, y, z) such that y = 1 and z = 8?