a lot
1000.
0.075 litres
There are 10 millimeters in 1 centimeter.
700 meters
25.6 inches
2.4km is 240,000cm
An inch has 2.54 cenemeters in it. That can be rounded to 2.5 === Centimetres, too, not "cenemeters". As for rounding like that... it may work over a very short length but would soon introduce a significant error in measurements.
1 inch=2.54 centimeters
4 decimeters
None, because there is no such thing as cenemeters. 100 centimetres = 1 metre so 10 cm = 10/100 = 0.1 metres.
There is no such thing as a cenemeter.