Final answer:
Knowing how much each bouncy ball costs is generally more important than knowing how many you can buy for a given amount of money.
Step-by-step explanation:
Understanding both the cost of each bouncy ball and how many you can buy for a given amount of money are important. However, knowing how much each bouncy ball costs is generally more important because it gives you a better idea of the value you are getting for your money.
For example, if each bouncy ball costs $0.50, you can buy 2 bouncy balls for $1. If each bouncy ball costs $0.25, you can buy 4 bouncy balls for $1.
So, knowing the cost per bouncy ball allows you to make a more informed decision based on your budget and preferences.