Which polynomial represents the difference below?

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

What is true about the dilation? it is a reduction with a scale factor between 0 and 1. it is a reduction with a scale factor greater than 1. it is an enlargement with a scale factor between 0 and 1. it is an enlargement with a scale factor greater than 1.

Can any one me with the answers to these questions asap?