"бізнес" is a kind of anglicism?
Exactly, it's a loanword (запозичене слово).
Should "School and work" be accepted here? I didn't report a problem because I wasn't sure.
Work is Робота.
What does "school and business" mean? Is it just two unrelated words put together for we to learn both?
Yes it is.
But we can be creative. http://www.wikihow.com/Create-a-Business-at-School
What is the difference between з and с?