19. A landscape supply business charges $35 to deliver mulch. The cost of the mulch is $29 per cubic yard. Write and solve a linear equation to find the cost of having 6 cubic yards
of mulch delivered to a site.

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