Mrs. vance told students how many rounds to expect in the spelling bee based on previous years. according to the graph what was the rate of change between 2011 and 2015

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