Jose owns 22 books, mary owns 17 books, chen owns 24 books and fred owns one more than the average number of books owned by the first three students. How many books does fred own?

21 books

Step-by-step explanation:

in the attachment

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 "

yes

yes yes yes