Please answer this (who ever answers correctly gets brainlest)

The national women's suffrage association was formed in 1869 to obtain rights for women.

Hitler was confident about invading russia because he had recently captured

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: (