The unit rate at which Caleb types is 20 words per minute.
What is the unit rate?
The unit rate is the average speed at which an activity is done. The unit rate is the total words typed by Caleb per minute. It is calculated by dividing the total words typed by the total time.
Unit rate = total words / total time
100 / 5 = 20 words per minute
To learn more about average speed, please check: https://brainly.com/question/21734785
