The distance he rides is, 44 1/2 miles long, he rides a portion of the distance at a slow speed both to warm up and to cool down, ryan rides 4/5 of the distance at a fast speed for training, of the slow-speed portion, 1/3 is for the warm-up. which estimate is closest to the distance, in miles, ryan rides to cool down? a. 3 b. 6 c. 9 d. 12