PLZ help The Chinese Exclusion Act restricted immigration solely on the basis of a person’s . A. race B. employment history C. skills D. religion

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: (