What Do the Following Sentences Refer to

question 1

Short Answer

What do the following sentences refer to :
-a popular device that allows children to be mobile at a very early age; controversial due to concerns about injuries.

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Definitions:

Cost of Living

The total amount of money needed to cover basic expenses such as housing, food, taxes, and healthcare in a certain place and time.

Consumption

The use of goods and services by households, or the action of using up a resource.

Income

The amount of money or goods that an individual or entity receives in exchange for providing a good or service, or through investing capital.

Utility Functions

Representations that quantify the satisfaction or happiness consumers gain from consuming various bundles of goods and services.