If the quantity demanded of a particular commodity is represented by the function Qd = 30 - 2p, what is the quantity demanded at a price of twelve Naira?

The given demand function is Qd = 30 - 2p, where Qd represents the quantity demanded and p represents the price of the commodity. We are asked to find the quantity demanded at a price of twelve Naira. Substituting p = 12 in the demand function, we get: Qd = 30 - 2(12) Qd = 30 - 24 Qd = 6 Therefore, at a price of twelve Naira, the quantity demanded of the commodity is 6 units. Hence, the answer is: 6 units.