Answer :

You will divide 4.00/25 which equally to .16 per copy
If you printed 25 copies that cost $4.00, you paid $0.16 (16 cents) per copy.

STEPS:
Divide 4 by 25
= $0.16

CHECK YOUR ANSWER:
Each copy costs $0.16. You decided to get 25 copies.

25 * $0.16
= $4.00