What battles of the civil war were fought on union soil?

Was “labor violence” inevitable and unavoidable ?

Who were the original knights of labor?

You are given the first four terms of an arithmetic sequence. why might you use a recursive formula? why might you use an explicit formula? under what conditions might a recursive formula be preferred over the explicit formula? under what conditions might an explicit formula be preferred over the recursive formula? pleasss ! sorry if it's a long question: (