The bids in an online auction are represented by the arithmetic sequence shown below. write an explicit formula to represent the bids as an arithmetic sequence. what is the ninth bid? 210,218,226,234

A3-dimensional figure has a square base and 4 lateral faces that meet at a point. explain the difference between the cross sections when a slice is made perpendicular to the base through the vertex, and when a slice is made perpendicular to the base and not through the vertex