Susan’s elevation at the top of a mountain is 1530 meters. After four hours of climbing down her elevation is 680 meters. What is Susan’s average change in elevation in meters per hour?

Which statement about the relative areas of ? abc and ? xyz is true? the area of ? abc > the area of ? xyz the area of ? abc < the area of ? xyz the area of ? abc = the area of ? xyz more information is needed to compare.

I'll give brainliest if you answer right : )

Identify all the cases where non-probability sampling is used when attempting to study the characteristics of a large city. studies on every subject in the population divide a population in groups and obtain a sample studies with a limited amount of time demonstrate existing traits in a population studies with the nth person selected