Commercial software, shareware, any number of things.
That is a description of copyright infringement.
if you copyright, yes you get what you have copied by also you get to go to prison
US copyright laws can be copied to your heart's content, because as works of the US Government, they are not protected by copyright law, in accordance with...themselves.
Because digital materials don't degrade when copied or distributed, the internet makes copyright infringement very cheap and easy. More specific to ICT is the notion of software piracy, because computer code can be protected by both copyright and patent.
EULA is neither should be a program nor a virus. EULA means End-User License Agreement. Inside the EULA file is the licensing of the software downloaded, copied, or installed.
Yes, you're breaking a copyright law.
No. Unless things have changed, the most accepted form of not breaking copyright with printed material is that up to 1 third of the material may be copied for reference purposes. Any more then that is breach of copyright. Why do you think it's called "Copyright" if any one is allowed to copy it entirely? The "right" to copy it remains with the copyright holder.
Saxon Math materials are protected by copyright, and cannot be copied, altered, distributed, or displayed without their permission.
Any works protected by copyright, for which you are not the copyright holder, or do not have a license from the rightsholder or an exemption in the law, cannot be legally copied, altered, distributed, or performed/displayed. Protection is automatic on works of sufficient originality, and extends for 70 years beyond the death of the creator.
Unless otherwise specified, virtually everything you encounter on the internet is protected by copyright and cannot be copied, altered, or further distributed without permission of the copyright holder.
You can sell copied handmade cards if there is no copyright on the original cards. You may end up being sued for plagiarism however.
It probably had copyright protection preventing you from doing this.