Answer:
Behaviour
Style
Structure
Explanation:
Above are the three primary separation of concerns for a web application at client side.
Structure --> we can define the structure of the application at client side using HTML
style-->style is used to give some styling information like font,color,headings so on at client side .In general we use CSS to do this at client side
Behaviour--> it actually defines the functionality of the elements at client side like when we click button what it should do.We will use JavaScript to define the behaviours at client side
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Answer:
a store owner would calculate a mean to see the how much a person spends
Explanation: