A"check", the form most routine maintenance (on aircraft) takes, comes is several grades, referred to as "letter checks" a through d; all performed at regular intervals. which of the following four hour intervals, representing a, b, c, and d are correct?

125; 750; 5,000; 20,000

100; 500; 5,000; 25,000

125; 750; 3,000; 20,000

100; 500; 3,000; 25,000

Give reason why some traditional caribbean customs are presently changing

Asociologist wants to study a culture that occurs in some women’s prisons: “state families,” in which individual prisoners take on certain roles within a group of like-minded prisoners. there is previous evidence that younger prisoners will use older inmates who play the roles of grandparents as a resource before they will turn to staff for and advice. the lieutenant in charge of a dorm of long-term prisoners offers to gather volunteers to speak to the researcher and also offers to vouch for the integrity of the researcher. the use of this staff is: a valid use of a statistical technique referred to “snowball sampling” wherein the inclusion of the first subject leads to the recruitment of another one subject.a useful tactic in obtaining a sample of prisoners who both meet the criteria and who will be honest with the researcher.wrong and is prohibited; subject selection needs to be free from intervention by prison authorities or prisoners.acceptable only when the researcher’s irb grants a special waiver.

Toward the end of the roman empire, what caused a decrease in the use of coined money tell me now