In a group of students, the ratio of students wearing red shirts to students wearing blue shirts is 5.28. the ratio of students wearing yellow shirts to blue shirts is 4.36. write the ratio of students wearing red shirts to students wearing blue shirts as a fraction in simplest form.

Jake volunteers to out his younger brother's basketball team in his free time. one of his tasks is to ensure that all the basketballs have enough air in them. given that a properly inflated basketball measures 8.8 inches across, what is the total volume of air inside six of jake’s basketballs? assume that the wall of each ball is infinitely thin.