Use the Supply and Demand Model to Explain What Happens

Essay

Use the supply and demand model to explain what happens to the equilibrium price and the equilibrium quantity for pasta in the following cases:
(A) There is a lare expansion in the nunber of firm producing pasta.
(B) It is witely publicized in the press that pasta i5n't as healthful as previdusly thaught.
(C) There is a sudiden increase in the price of paste flour, which is used to produce paste.
(D) Pasta suddenly becames papular because amavie idol pramates it in televisian commercials.