Answer:
Female factory workers had to work long hours, sometimes up to eighty hours a week.
Step-by-step explanation:
in order to better understand the document, the historical detail that female factory workers had to work long hours, upto 80 a week helps better understand why would they strike and ask for better working conditions and better wages, this is important because you can see that they were workin 12 hours a day if they worked all 7 days of the week, if they for some reason had one day off, they´d be working for 15 hours a day.