There are 13 weeks in the second quarter of 2015.
There are 13 weeks in 91 days.
35 weeks.
676 weeks.
Marine Corps Boot Camp lasts for 13 weeks.
There is also 12 weeks in the second trimester
13 weeks = 13*7 days = 13*7*24 hours = 2184 hours
There are 13 weeks in a quarter, which gives you 4 x 13 = 52 weeks in a year.
13 weeks.
13 days = 1 week and 6 days
13.
Weeks 13-28 of pregnancy