Which is one way that historians can establish the authenticity of a primary source?

According to the law of supply,suppliers want to sell their product at prices

Neighborhood and community characteristics: the social ecology approach emphasizes the view that certain social and physical characteristics of neighborhoods and communities influence the likelihood of committing deviance and crime.imagine that you are in a position as a community leader. there are several neighborhoods in your community with: high poverty rates low quality housing single parent households which issue would you address first, and what strategies would you propose to address this issue?

What is the volume of the cone? (use 3.14 for π.) height of 12 ft and width of 7 fast i will give u brainliest my friend mike is a re tardd