There are 100
Its 10. 10 decades = 1 century.
700
many, many years, decades. That or about 40.
i hate this question
150 years
Two millennia is equal to 200 decades.
5000000
300 of them
900
The answer depends on 6.5 WHAT! Seconds? Millennia?
One and a half millennia.
There are 10 centuries in one millennium.
1 millennia =1000 year 9 millennia =9000 yrs
1 millennia =1000 year 2 millennia =2000 yrs
1 millennia =1000 year 6 millennia =6000 yrs
1 millennia =1000 year 2 millennia =2000 yrs
400 of them because a decade is 10 years and 400*10 = 4,000 years which is 4 millennial