Help with this problem for number 10

What is the shape of the height and weight distribution

(mc 02.03) what set of reflections and rotations would carry rectangle abcd onto itself? reflect over the y-axis, reflect over the x-axis, rotate 180° rotate 180°, reflect over the x-axis, reflect over the line y=x reflect over the x-axis, rotate 180°, reflect over the x-axis rotate 180, reflect over the y-axis, reflect over the line y=x

: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?