Assignment:
The demand curve for a certain commodity is p=-.001q+32.5
a) At what price can 31,500 units of the commodity be sold at?
b) What quanities are so large that many units of the commodity can't possibly be sold no matter how low the price. The hint they gave was to drop the price, make an inequality and solve for q.
Provide complete and step by step solution for the question and show calculations and use formulas.