Answer:Cell Phone Market Structure is an Oligopoly:
Explanation:This because the competitors in this market uses strategic moves in order to get ahead of the influence caused by the other competitors in the same market ,which make them be sellers who are price setters.rivals can cause collision and that influences their decisions.
The total revenue refers to price times quantity simply put:
total revenue=pricexquantity
=8x10
=80
Since they said after price fixing this means after the time when the supply was equal to the demand.