How is the Washington vs Dubois debate still relevant today?

An education expert is researching teaching methods and wishes to interview teachers from a particular school district. she randomly selects ten schools from the district and interviews all of the teachers at the selected schools. which type of sample did she use in this study? a)systematic sample b)probability sample c)stratified sample d)cluster sample

5. what would happen if citizens did not meet their duties and responsibilities? how would u.s. society change? explain your response.

What is the social order of the ancient river valley civilization of mesopotamia?