Who created a system of mathematics in which a circle represented 1 and a bar repersented 5

Anthony johnson, an african who arrived in virginia in 1621, a. learned the powhatan language and became a translator for governor thomas dale. b. owned slaves. c. translated the king james version of the holy bible into indian and african dialects. d. was the first slave who purchased his freedom with earnings from growing tobacco.

How did the byzantine culture influence russia?

Which statement describes the impact of the 21st amendment?