What is the next number 3,6,4,8,6,12,10

With these: 18/36 = 1/? missing number change 1 5/8 to improper fraction. change 19/5 to a mixed number.

Find the measure of the interior angles of the following regular polygons: a triangle, a quadrilateral, a pentagon, an octagon, a decagon, a 30-gon, a 50-gon, and a 100-gon.

: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?