Denelle's pie shop recently sold 20 pies, of which 5 were blueberry pies. what is the experimental probability that the next pie sold will be a blueberry pie?

(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.