Final answer:
Sally wanting to buy new shoes and deciding to get a job to pay for them demonstrates the concept of earning income through employment to meet her needs.
Step-by-step explanation:
Sally wanting to buy a new pair of shoes but not having any money demonstrates the concept of earning income through employment to meet her needs. If Sally wants to pay for her shoes, she needs to find a job. By working and earning a salary or wages, she can accumulate money to purchase the shoes. This aligns with the principle of income generation and budgeting in business.
For example, Sally could get a part-time job at a local store or restaurant to earn money for the shoes. Depending on her hourly rate and the number of hours she works, she can calculate how long it will take her to save enough money for the shoes.