The answer will depend on what conversion "that conversion" is. And since you have not bothered to share that critical bit of information, it is not possible to give a more helpful answer.
75.25 is already in decimal form: no conversion is required.
Possible.
0.1111111 ...
10
110001.01
That is 31 in decimal
The number is already in decimal form: no conversion is required.
75.25 is already in decimal form: no conversion is required.
2.05
Possible.
0.1111111 ...
Conversion of 35/10 as a decimal is 3.5
10
170
110001.01
13
45