The number is already rounded to a greater degree than that!
It is simply 11.0 to the nearest tenth
360000000
0.7273
11.0
It is then 19.1 to the nearest tenths
It is 17.9 to the nearest tenths
8.96 to the nearest tenths is 9.0
2.45 to the nearest tenths is 2.5
7.66 to the nearest tenths is 7.7
67.07 to the nearest tenths is 67.1
It is already rounded to the nearest tenths.
116 to the nearest tenths is 116.0
9,735,519 to the nearest tenths is 9,735,519.0
52 to the nearest tenths is 52.0