Well to figure out how to round to the tenth, let's figure out where the tenths place is.
Remember that "Tens" is 2 places to the LEFT of a decimal.
However, we are dealing with "Tenths", so we are actually moving 1 place to the RIGHT of a decimal.
So, with our number, we have 44.9598
44.9598
Remember we are looking for the "Tenths" place, so look 1 place to the RIGHT of a decimal.
44.9 is our number.
To determine if we round up or not, the Hundredths place must be 5 or higher to estimate up. If it does not meet the number 5, we stay at our current Tenths place.
The Hundredths place is 2 places to the RIGHT of a decimal.
We now have 44.95
Since our Hundredths place is 5 or higher, we round up our Tenths place by 1.
9 + 1 = 10
44 + 1.0 = 45.0
Your estimation is 45.0
I hope this helps!