Find the numerical value of 
by using the sum formulas.
Definitions:
Competitive Market
A market where numerous sellers compete to sell their goods or services to a large number of buyers, promoting efficiency and innovation.
Law of Demand
The economic principle that there is an inverse relationship between the price of a good or service and the quantity demanded, assuming other factors are constant.
Price
The total of money envisaged, necessitated, or expended as a payment for something.
Quantity Supplied
The total amount of a specific good or service that producers are willing and able to sell at a given price over a certain period of time.
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