Explain using your own words and 2-3 sentences the differences between substitution and elimination. You may want to consider when one method is better than the other. Be sure to explain how each method works in general.

a net is a diagram that shows a “flattened” view of a solid. in a net, each face and base is shown with all of its dimensions. a net can also serve as a pattern to build a three-dimensional solid.

a pyramid is a three-dimensional object with a base that is a polygon and triangular faces that meet at one vertex.

" the net of a triangular pyramid consists of four triangles. the base here we are given of the pyramid is a equilateral   triangle, and the lateral faces are also triangles "

the answer will be

7/2

(decimal: 3.5)

welcome ; )

step-by-step explanation: