8.25 days
there are 560 days in 80 weeks
198 days is about 6½ months. There is no fixed number of days per month. The average is about 30.4 as there are 182.625 days in a year divided among 12 months.
198
Four weeks and five days.
77 days = 11 weeks
There are 175 days in 25 weeks.
There are 420 days in 60 weeks.
There are 5 weeks in 35 days.
126 days is 18 weeks.
After 4 days, only 1/16 of the original amount of gold (198/16 = 12.375) will remain.
There are 13 weeks in 91 days.