3000
8.000
It is 0.86345, none of which are zero.
That rounds to 40.
It is 72.
70
3000
8.000
The correct answer is 1
0.64 can be rounded to 1 * * * * * But the greatest place value for a non-zero digit is the tenths.
The greatest non-zero place is the hundredths place, and so it is 8.23, exactly as in the question.
It is 0.86345, none of which are zero.
What would be 159.45 if you round it to the greatest nonzero place
To the nearest ten, 70
4841
It is seven tenths.
0.5