4 + root of 2 / 2 + root of 2 is equal to A minus root of B prove

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°?

How do businesses a country's economy? a. by investing in goods and services b. by increasing the unemployment rate c. by making profits

Which statement accurately describes how to perform a 90° clockwise rotation of point a (1,4) around the origin?