Very simple. You do nothing!
3% = 3/100 = 0.03. To the nearest tenth is is 0.0 (or 0).
523.3
15
Round 3.7416573 to the nearest tenth is 3.7
The answer for this question is 2,65890
295.0
It then is 471.4 to the nearest tenth
It is 263.8 to the nearest tenth
It is 61.9 to the nearest tenth
4.4, to the nearest tenth.
118.0
1.2