Which physicall feature is shown on the map

Which controversial political issue of the 1920 is reflected in the cartoon

Which of these is the modern day result of spain colonization of the americans?

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: (