Which statement best describes an axis of symmetry for this regular hexagonal pyramid? the axis passes through the vertex and through the center of the base. the axis passes through two consecutive triangular faces of the pyramid. the axis passes through two non-consecutive triangular faces of the pyramid. the axis passes through one triangular face of the pyramid and through the base.

The table below shows the approximate masses of a dust particle and a grain of pollen. dust particle 0.000000778 g grain of pollen 0.00000000155 g the mass of a dust particle can be estimated and written in the form a × 10^b, where a = 8 and b = the mass of a grain of pollen can be estimated and written in the form a × 10^b, where a = 2 and b = based on the estimates, the mass of a dust particle is approximately blank times larger than the mass of a grain of pollen.