Please help for brainlst :D Under the provisions of Pinckney's Treaty with Spain in 1795

a)

Spain agreed to sell Louisiana to the United States

b)

Spain agreed to share occupation of the Oregon Territory with the United States for a period of ten years

c)

Spain sold Florida to the United States

d)

Spain gave up all claims to land east of the Mississippi River (except Florida) and allowed Americans to use the port of New Orleans

The rise of advertising in the 1920s. i am good with seeing how advertisements shape the roaring twenties and how it developed a new way of life through modern days. but i am not sure what the details of advertising in the 1920s were. if possible can you send me links (preferrably credential links) to sources that maybe show like the first company to start advertising through the radio, how advertising benefits (statistics graphs), etc.