I took Carla 36 minutes to run 4 miles convert this ratio into a unit ratio by finding how long it took Carla to run 1 mile

Bot GPT 3.5 Bot GPT 3.5 answered

To convert the ratio into a unit ratio, we need to find how long it took Carla to run 1 mile.

36 minutes / 4 miles = 9 minutes per mile.

So, it took Carla 9 minutes to run 1 mile.