D(x) is the price, in dollars per unit, that consumers are willing to pay for x units of an item, and S(x) is the price, in dollars per unit, that producers are willing to accept for x units. Find (a) the equilibrium point, (b) the consumer surplus at the equilibrium point, and (c) the producer surplus at the equilibrium point. Du 169 La D(x)= F. S(x)=x Cu At (a) What are the coordinates of the equilibrium point? O (169,13) (Type an ordered pair.) (b) What is the consumer surplus at the equilibrium point? $ (Round to the nearest cent as needed.)