Last week rachel power walked 2 3/5 miles per day on each of the 7 days. during the same week, she also jogged 5 3/4 per day on 4 days. what was the total number of miles rachel power walked and jogged last week?

After surveying students in her homeroom, katie decided to use a number cube to predict the probability that a randomly chosen student in her school planned to stay after school today for extracurricular activities. in katie’s simulation, a roll of 1 represents staying after school, while rolls of 2, 3, 4, 5, or 6 represent leaving school at the end of classes. according to katie’s model, what is the probability that three randomly chosen students will all stay after school for extracurricular activities today?