Final answer:
Point A on the graph represents Sarah earning $0.25 for each headband she sold.
Step-by-step explanation:
Point A on the graph of Sarah's earnings from selling headbands at the festival represents Sarah earning $0.25 for each headband she sold. This is because the graph shows the amount of money earned on the vertical axis and the number of headbands sold on the horizontal axis. At Point A, the earnings value corresponds to $0.25, indicating that Sarah earned $0.25 for each headband sold.