Solve the equation for x: 42 - 3x + 1.2 = 5.3 - 1.8. O r = 5.9
O =4.7
O I= 4.2
OI=2.3

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