How many feet are in 3 miles?

To determine how many feet are in 3 miles, it is essential to understand the conversion factor between miles and feet. One mile is equivalent to 5,280 feet. Therefore, to convert miles to feet, you multiply the number of miles by the number of feet in one mile.

Calculating for 3 miles involves multiplying:

3 miles x 5,280 feet/mile = 15,840 feet.

This calculation confirms that there are 15,840 feet in 3 miles, which is why this choice is the correct answer. Understanding this conversion is fundamental when working with measurements in various units, enabling accurate conversion and calculation in situations requiring distance measurement.