What did germany do to encourage austria to go to war with serbia?
a. germany promised support to austria.
c. germany sent a false letter to the austrian government informing them of an attack on austria by serbia.
b. germany threatened to invade austria unless they went to war with serbia.
d. germany accused the serbian government of trying to assassinate austrian government officials.

Soon-yi's house has a hexagonal window made up of six identical equilateral triangles as pictured below.

What mountain range is located near 60*n and 60*e

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.