What is the perimeter of the shapes

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°?

Solve 2^x=32 and rewrite this equation in a logarithmic form

Is this a polynomial function? i need to know asap