Final answer:
If there were two people dividing the cost, each person would spend $180. If there were five people dividing the cost, each person would spend $72.
Step-by-step explanation:
To find out how much each person would spend if there were two people dividing the cost of the gift, you need to divide the total cost ($360) by the number of people (2). So, each person would spend $180 (c).
If there were five people dividing the cost, you would divide $360 by 5. Each person would spend $72 (a).