To convert a speed given in miles per minute to feet per minute, you would want to use the conversion factor that relates miles to feet.
Since there are 5280 feet in 1 mile, the correct conversion factor is:
\[ \frac{5280 \text{ feet}}{1 \text{ mile}} \]
Using this factor, you can multiply your speed in miles per minute by \( \frac{5280 \text{ feet}}{1 \text{ mile}} \) to get the speed in feet per minute.
So the answer is:
StartFraction 5280 feet Over 1 mile EndFraction