Can anybody help me with 1b please I would really appreciate it so much

Anthony is making a collage for his art class my picking shapes randomly. he has five squares, two triangles, two ovals, and four circles. find p( circle is chosen first)

Can somebody 1. what is the formula for finding the vertical distance between two points on a coordinate plane?

Ahyperbola centered at the origin has a vertex at (-6,0) and a focus at (10,0)