Elijah's journey from home to the library is shown on the travel graph below. Calculate his average speed (in mph) for the journey Round your answer to 1 decimal place. 31 Distance from home (miles) 2.5 2 1.5 1 0.5 Time (minutes) 45 50 55 60 65 70 0 0 5 10 15 20 25 30 35 40