I dont know what im doing can some1 help

What is the relationship between all triangles that can be drawn given the same three angles

Interest begins accruing the date of the transaction except for auto loans mortgages credit card cash advances credit card purchases

(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.