4. Use the distributive property to simplify : 12(2−6).

-48

Step-by-step explanation:

12 x 2=24

12 x 6= 72

24 - 72 = -48

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 "

-2

7 - 9 = -2

reversed:

-2 + 9 = 7