Someone please help I need it know the first question has 2 answers

Suppose you use three different scale to weigh a bag of organges. one scale says the nag weighs 2.1 lb, and third says it weighs 2.1 lb. the actual weight of the bag of organges is 2.153 lb. which of the following best decribes these results?

In which part of the body is a ball-and-socket joint found?

Sequence how oxygen accumulated in the atmosphere and the effect it had on life by completing the flowchart