55.0
5.49 rounded to the nearest integer is 55
19.6
60
19.55 rounded to the nearest tenth would be 20, the reason for this is because: 1|9| .55 - As you are rounding to the nearest ten, you would look at the value in this location, if it is 5 or higher, then it has to be 20, however if this value is 4 or lower, the nearest tenth would be 10.
55.0
55 rounded to nearest ten is 60
55
55.0
55.0
The answer is 7.4
0.55