(1) Because: total price ÷ number of copies = unit price (certain), the number of copies ordered is directly proportional to the total price;

(2) Because the circumference of a circle C=πd, the diameter of the circle in this question is certain, and the pi is also certain.

So the perimeter is also fixed, that is, all three quantities are fixed, and there is no variable problem.

So the circumference is out of proportion to pi;

So the answer is: yes, no.