Answer:
Trade-in allowance
Explanation:
A trade-in allowance is a type of discount in which the price of a good is reduced by the value of a another good that the buyer gives to the seller.
In this question, we have a trade-in-allowance because buyers give a product (a used vacuum cleaner) valued at $100 in exchange for a discount by the same amount of the total price of the new vacuum that they want to buy.
The answer is geodemographic segmentation. This is a multivariate measurable characterization strategy for finding whether the people of a populace fall into various gatherings by making quantitative examinations of numerous attributes with the presumption that the distinctions inside any gathering ought to be not as much as the contrasts between gatherings.
