If we randomly select one of the customers represented in the table, what is the probability that the waiting
time is at least 12 minutes or between 8 and 15 minutes? Round to the nearest thousandth.
0.556
0.714
0.727
0.111

(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.