Observe the pattern made by the figures. Can you write a conjecture about the number of triangles formed by connecting one vertex of a polygon with n sides to each of the other vertices?

Which of the following is not a subset of {1,2,3}?

Formulate alisha has a number in mind. if she adds three to her number the result is less than five. use this information to write and solve an inequality about alisha's number. then graph the solution set.

In each diagram, line p is parallel to line f, and line t intersects lines p and f. based on the diagram, what is the value of x? ( provide explanation)