0.034 rounded to the nearest hundredth is 0.03. When rounding to the nearest hundredth, you look at the digit in the thousandth's place, which is 4 in this case. Since 4 is less than 5, you do not round up the digit in the hundredth's place. Therefore, 0.034 remains 0.03 when rounded to the nearest hundredth.
It then is 16.11 rounded to the nearest hundredth
16.64
0.09
1.54
12.04
It is 1.54 rounded to the nearest hundredth
It then is 16.11 rounded to the nearest hundredth
It is already to the nearest hundredth as 9.69
16.64
0.09
1.54
12.04
0.61
2.81
66.33
1.24
74.01