Solve for x. Round all answers to the nearest tenth

In which direction does the left side of the graph of this function point? a(x) = 3x - x2 + 4x - 2

Each unit cost 14p, how much would 942 units cost?

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