Average speed is found by dividing the distance traveled by the time taken. Suppose a runner checks her smartwatch during a run and finds she has traveled 1.49 miles after 12.7 minutes. She checks again after finishing and she traveled a total of 3.25 miles in 27.2 minutes. Find the​ runner's average speed​ (in mi/min) for​
(a) the first part of the run​