There are 3.5 decades in 35 years
If you mean decades then there are 10 decades in 100 years
60 years = 6 decades.
4 decades, 4 years
Twenty decades = 200 years
To be fossilised it can take anywhere from a few decades to a couple of years.
Eight centuries ago give or take a couple of decades
There are 3.5 decades in 35 years
There are 5 decades in 50 years.
230 years = 23 decades
16 decades and 4 years.
96 decades and 9 years.
There are 19 decades in 190 years.
There are 12 decades in 120 years.
12.2 years = 1.22 decades
Not in a couple of years.Maybe in 2 decades or so.
There are 10.6 decades. Or 10 decades plus 6 years.