This week, over a span of six days, she ran a total of 38.4 miles. the distances, in miles, that lisa ran throughout the week are as follows: 3.2, 7.5, 9.8, 11.5, 2.9, 3.5. what was the average distance of each run? lisa's goal for this week is to run an average of 6 miles per day. how many miles does she need to run tomorrow (the 7th day) in order to achieve her goal of 6 miles per day for the week?