Final answer:
The domain of the function p(w) in Aiden's spice shop is best represented by real numbers, which include both integers and decimals.
Step-by-step explanation:
The type of number that is more appropriate for the domain of the function p(w), which represents the price of w kilograms of cumin seeds in Aiden's shop, is Real numbers.
Since the price of cumin seeds can vary between 5 dollars for 1 kilogram and 2000 dollars for 1000 kilograms, the domain of p(w) can include any decimal number within that range. Real numbers consist of both integers and decimals, making them the more suitable number type for the domain of p(w).