Identify the unit rate in the graph.
a) 80
b) 60
c) 40
d) 20

The answer is A)80 that is the answer for 80 miles per every 2 hours but, C)40 I think would be the best answer since that is how many miles it is for every hour so the answer to my opinion is C if it is how many miles per hour. That is the unit rate, sorry I made such a long reply just wanted you to understand what is going on with the question :)