8.0
It is .8, exactly as it appears in the question.
8 rounded to the nearest tenths is 8.0
It's already there.
561.8
724.8
8.0
8
0.8004
8.0
62.8 = 62 and 8/10ths so it is already rounded to the nearest tenth.
75.0
96.8 = 96 8/10 so it is already rounded to the nearest tenth.
It is 5.2 when rounded to the nearest tenths.
65.6
It is then 52.8 when rounded to the nearest tenth