What is the meaning of the word detain as it is used in the underlined portion?.

How do you work out 21.3-8= show your working. plz

Aweighted gpa counts more highly

Suppose you live in location a, a part of the united states with a semiarid climate . you travel to location b, which is in a neighboring area . there you would find a humid continental climate. in which direction is location b likely to be , relative to location a? what is an explanation for the difference