Consider the following expression: m−15 select all the phrases that have the same meaning as the expression. answer choices take away 15 from m . the number m decreased by 15. the sum of a number m and 15. the quotient of 15 and a number m . the difference of a number m and 15.

(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.