Ethan went on a 6 mile kayaking expedition down the taos box on the rio grande river last week. the expedition was divided into three 2-mile stages the first stage of the trip began at 2: 30 and ended at 3: 10 the second stage of the trip runs through the swiftest current. ethan travels through the rapids at twice the speed as the first stage of the trip ethan travels the third stage of the expedition at the same speed at the first stage what are the different speeds that ethan travels during his expedition? at what time does ethan arrives at the landing dock?