What is depression? and why does it happen

Y=(x+3)(x-4)(x+1)^2 sulutions? multiplicity?

(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.

Benefit(s) from large economies of scale, in which the costs of goods decrease as output increases. natural monopolles perfect competition