Help with question one please!

What is not true about kl and mn? what is mn? (show )

What is the order of these fractions from least to greatest 2/3 7/10 5/8 65/100

(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.