Let u be the set of students in a high school. the school has 800 students with 20 students on the gymnastic team and 10 students on the chess team. select the venn diagram if three students are on both teams.

Martha is training for a duathlon, which includes biking and running. she knows that yesterday she covered a total distance of over 55.5 miles in more than than 4.5 hours of training. martha runs at a speed of 6 mph and bikes at a rate of 15.5 mph.