Vector has 4 orange picks for every 3 green picks if 8 of the picks are orange, how many picks are green

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

What is the sum of the first 8 terms of the geometric series

Me d is also an option but i couldn't get it in the picture