If uppercase I = p r t, which equation is solved for t?
I – pr = t
StartFraction uppercase I minus p Over r EndFraction = t
StartFraction uppercase I Over p r EndFraction = t
I + pr = t

(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.