What were citizens of the polis expected to do

In a few sentences, explain how the medici family contributed to the renaissance.

What two different approaches did the knights of labor and the american federation of labor take in building a union organization? a) the knights of labor accepted only unskilled workers; the american federation of labor accepted only skilled workers. b) the knights of labor accepted skilled and unskilled workers; the american federation of labor accepted only skilled workers.c) the knights of labor refused to accept african american or chinese workers; the american federation of labor accepted all workers.d) the knights of labor accepted workers from a single industry; the american federation of labor accepted workers from several industries.

Plz hurry in the vedic age, what types of goods were traded most often? a.goods that there is a shortage ofb.goods that are expensive and rarec.goods that there is a surplus ofd.goods that are cheap but rarebe the