Find the 13th term of the arithmetic sequence – 2x + 8, 4x + 2, 10x – 4, ... The other answer I found for this was wrong pls help !!

Ineed how factor it by finding the gcf

If the altitude is drawn to the hypotenuse of a right triangle, then the two triangles formed are similar to the original triangle and to each other. which set of triangles shows the similar triangles created by the altitude in the diagram?

Suppose that 15 inches of wire cost 60 cents. at the same rate, how much (in cents) will 12 inches of wire cost