Final answer:
There isn't a one-size-fits-all number for flyer distribution as it depends on various factors. Calculations based on distance, time, and speed help to plan for efficient distribution, as seen in Jill's yard sale example.
Step-by-step explanation:
The question regarding how many flyers should be distributed for events seems to pertain more to a practical approach to planning rather than a purely mathematical formula. However, considering the scenarios provided, the question can be approached using basic arithmetic involving distance, speed, and time calculations. It's important to ensure an ample number of flyers are distributed if this is a consistent activity, such as Jill's yard sale, or community events like those Javier participates in. Additionally, data on the production of promotional materials during a historical period, while informative, doesn't offer a direct answer to the quantity of flyers needed for a modern event.