At the last team meeting both shelia and freddy showed up having erroneously accomplished the same task, which meant that one task was left undone. Both shelia and freddy were certain that they accomplished their assigned task. Which of the following actions would be most effective to ensure this does not occur again?.

Based on the narrator's comments about living with the widow douglas, the reader can infer that a) the narrator doesn't care much for civilization and its strict rules. b) the narrator admires and wants to become more civilized and refined. c) the narrator is extremely religious and of high moral standing. d) the narrator desires to become a productive member of society.

Earth's atmosphere is unique among the planets and is able to support life because it contains a large amount of a) oxygen b) helium c) methane d) carbon dioxide

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