Is a market structure that has few sellers who can influence the price. products can be identical or differentiated, such as in the steel or car markets. a) perfect competition b) monopolistic competition c) oligopoly

Sanderson is having trouble with his assignment. his shown work is as follows: − 3 7 7 3 = − 3 7 × 7 3 = − 21 21 = −1 however, his answer does not match the answer that his teacher gives him. complete the description of sanderson's mistake. find the correct answer.