Answer:
The third choice, or 100 in/ 1 min × 1 ft/ 12 in.
Step-by-step explanation:
When converting, you want to use the proper units.
When going from inches to feet, note that 1 foot = 12 inches.
100 in/ 1 min × 1 ft/ 12 in
(the inches cancel, and you are left with ft per min.)
