Anyone (any system) that agrees with you.
All the various systems are actually rational.
for example if you are baking a cake you need to know the measurement of flour,etc...to put in it.you use a measuring cup,the measurement in an measurement cup is written in rational numbers(fraction. )
old system of measurement English system of measurement
metric system
Most of the world uses the metric system for measurement.
The metric system is mostly a decimal system of measurement.
what is the system of measurement adoptd by the philippines
The metric system is accepted as the dominate measurement system in the world.
SI system of measurement uses kilograms
The measurement system is in milliliters. Gallons are British (the Imperial system of measurement), or, slightly smaller, American. Gallons are not part of the metric system, thus are not measures in millilitres.
Feet and inches are part of the Imperial measurement system.
12 is a rational number. Incidentally, there is no such time as 12 am or 12 pm: they are 12 noon and 12 midnight. Furthermore, if it was a time then it would not be a number (numbers do not have measurement units associated with them) and so it could not be rational.
Ounces and feet are units of measurement in the English system.