Which statement best describes the Roman Empire at the time Constantine came to power?

It was enjoying a peaceful era.
It was suffering from a period of unrest.
It was emerging as an economic power.
It was experiencing a period of expansion.

d) a constitutional amendment

b. sec, foreign relations

map scale refers to the relationship (or ratio) between distance on a map and the corresponding distance on the ground. for example, on a 1: 100000 scale map, 1cm on the map equals 1km on the ground.