Which expression is equivalent to 6(2m – 1) – 4(m + 8)? a. 8m – 38 b.8m + 7 c.2m – 38 d.8m + 31

(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.