A graphic designer has designed a 40 centimeter by 40 centimeter logo for a business with a circle with radius of 5 centimeters at the center. They now need to reduce the logo to a 2 centimeter by 2-centimeter size to fit on business cards. What will the scale factor of the dilation be (the answer must be in decimal form)

What will the diameter of the circle be on the business card (the answer must be in decimal form)