It should be obvious to anybody that the answer will depend on the units used for 16.97 For example, 16.97 feet to the nearest inch will be quite different from 16.97 centimetres!
1 inch
0.995 inches rounded to the nearest tenth of an inch is 1.0 inch.
If that's already cubic inches, it is already rounded to the nearest cubic inch. If it isn't, it won't round to them.
63 inches
1.0"
30 inches, rounded to the nearest inch, is 30 inches.
Five inches rounded to the nearest 16th of an inch is five inches.
6.687898089171975 inches rounded to the nearest one-eighth inch is 6.75
235 cm rounded to the nearest hundredths of an inch is 92.52 inches.
0.995 inches rounded to the nearest tenth of an inch is 1.0 inch.
1 inch
All of these numbers can be rounded to the nearest tenth of an inch.
that is 1.0 inch
1 inch
20"
64
3,928