I need help on this problem I really don’t understand it .

Given the box plot, will the mean or the median provide a better description of the center? box plot with min at 10.5, q1 at 11.5, median at 12.5, q3 at 13.5, max at 15

What are the solutions of the system? solve by graphing. y = x^2 + 3x + 2 y = 2x + 2

:24% of students in a class are girls. if there are less than 30 students in this class, how many students are there? how many girls are there?