There are 2 4/7 weeks in 18 days.
7 x 18 = 126 days
18 x 7 = 126
126 days / 18 weeks
18 weeks old or 126 days old
there are 560 days in 80 weeks
126
about 4 months
Four weeks and five days.
77 days = 11 weeks
There are 175 days in 25 weeks.
There are 420 days in 60 weeks.