Help pls it’s due soon make sure to follow the steps I don’t get it

Suppose the radius of a circle is 16. what issuppose the radius of a circle is 16. what is its circumference its circumference

Read the situations in the table below. then drag a graph and equation to represent each situation. indicate whether each of the relationships is proportional or non-proportional. edit : i got the right answer its attached

Which graph of a hyperbola represents the equation 16x^2-y^2=16