Amy was doing her math homework and got an answer of 1.683 for the problem 5.61x3. her friend ruth knew immediatelty that the answer was wrong, without doing any calculations. how did she know

(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.