How does the Interior Angle Sum Theorem work for all polygons?

List the sides of δrst in in ascending order (shortest to longest) if: m∠r =x+28°, m∠s = 2x+16°, and m∠t = x+12°

In a class, there are 12 girls. if the ratio of boys to girls is 5: 4 how many boys are there in the class

Which spreadsheet would be used to compute the first nine terms of the geometric sequence a^n=32•(1/2)n-1