Question

what is the relationship between 3.0 and 0.3 help its hw

Answer 1

3.0 is as much as 3
0.3 is one tenth of 3

The three in 3.0 is at ones place
The three in 0.3 is at tenths place

Those are the major differences, I hope it'll help you :)

Answer 2

the difference lies in the measurement scale !