Expressed in words, this is equal to one hundred and seventy.
Twenty-one years old.
You would write it as 1.7x102
One and five tenths years OR one and one half years.
Approx 3.26 years.
One hundred and seventy
Expressed in words, this is equal to one hundred and seventy.
170 100 then reduce if needed
170 x 106 or 170,000,000
I think it was around 170 170
170,000,000,000
One hundred fifty years.
0.17
As a product of its prime factors: 2*5*17 = 170
Twenty-one years old.
You would write it as 1.7x102
170