Final answer:
There are 18,480 feet in 3.5 miles.
Step-by-step explanation:
To convert miles to feet, we can use the conversion factor that there are 5,280 feet in one mile. To find out how many feet are in 3.5 miles, we can multiply 3.5 by 5,280. This gives us 18,480 feet in 3.5 miles. Therefore, there are 18,480 feet in 3.5 miles.
Learn more about Converting miles to feet