Which set of ordered pairs does not represent a function?

    choose the correct definition for  extremo.  a.  end      b.  extra      c.  extract      d.  eventual 

(c) the diagram shows the first three shapes of a matchsticks arrangement.first shape = 3second shape = 5third shape = 7given m represents the number of matchstick used to arrange the n'th shape.(i) write a formula to represent the relation between m and n. express m as the subjectof the formula.(ii) 19 matchsticks are used to make the p'th shape. find the value of p.

Acd that is originally priced at $15.85 red-tagged for the sale. what is the sale price of the cd