Final answer:
The unit rate is 1.2 miles per hour.
Step-by-step explanation:
To find the unit rate in miles per hour, we need to divide the distance traveled by the time taken. In this case, the distance is 2/5 miles and the time is 1/3 of an hour. So, the unit rate is:
(2/5 miles) / (1/3 hour) = (2/5) / (1/3) = (2/5) * (3/1) = 6/5 = 1.2 miles per hour.