The system of grouping files and folders is called?

Your question:high schoolcomputers and technology 50+25 ptsharry needs to use a type of graph in a spreadsheet to show variations in data over a specific period. what type of graph or chart is most useful for this purpose? a is particularly useful for showing variations in data over a specific period. our teams answer: bar graph : )our teams aim's to and we are happy to ! if the answer is wrong notify us quickly for we can fix it quickly! : )-experimentsdiy

The correct answer would be a.

These are very for instance for math pemdas parenthesis, exponents, multiplication, division, addition, subtraction without that i would never be able to remember what to do first with it i can remember.