Consider the diagram to the right, which depicts the supply of broadband Internet service. The supply of broadband service is given by QS = 12.5P – 150, where Q is the quantity of services (in hundreds) and P is the price per month. Assume that the price of broadband service is $25 per month. Determine the following, paying particular attention to the units in which quantity is denominated:
a. The total number of services providers will supply at that price
b. The total amount received by producers for that service, areas D and E
c. The producer surplus received by suppliers, area D