The answer to this question is 1.29 weeks.
This is because we know that in one week, it’s 7 days. However to find out the amount of weeks in 9 days, we have to divide it by 7. This is because 7 days is the unit rate for a week!
When we divide 9 by 7, we would get 1.28571429…
Just round it to the nearest hundredths, which would be 1.29 weeks. Hence the answer is 1.29 weeks.
Hoped this helped! Any questions please comment. Thanks!