If the cost varies directly with the number of minutes Jalen talks on the phone, which equation represents the variation? y = 0.05 x
y = 20 x
y = 157.5 x
y = 1125 x

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