A lot of things are necessary to make sure your work won't be seen as plagiarism. For example it is useful to keep research notes that show your work flow. If you do use other sources, make sure to cite them and especially If you quote them make sure you use citation marks and give the source.
Answer: Pax Mongolica, also known as the Mongol Peace was a period of time where peace, stability, economic growth, cultural fusion and cultural development were happening around the Mongol's occupied territories. Pax Mongolica was a time of spreading different ideas and a great cultural expansion around Europe and Asia.
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8 valentines because if she gave away 2 and it was five times more then you do 5x2 which is 10 and 10-2 that she received today so it is 8
