20 POINTS! My question got deleted for some reason. Lol trying again!

The factorization of 8x3 -125 is (2x-5)(jx2 +kx+25)

When you are making a circle graph by hand, how do you convert a number for a part into its corresponding angle measure in the circle graph? when you are making a circle graph by hand, what should you do if one of your angle measures is greater than 180°?

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°