Twenty-one makes it clear that the two values are tied together. Leaving out the dash can cause the reader confusion in some cases. Also, with a number beginning with twenty, the reader may expect to see a year being formed rather than a number, as many people say (for example) twenty ten for 2010.
Other than these fine points, the two forms mean exactly the same thing.
this is for one thing and these is if you are talking about many things.
No. There is no difference between -0 and +0, so both are called 0.
The difference is only aesthetic. They both mean the same thing.
"Delta" is often used to mean "the difference" between two numbers, and that is the same as subtracting. When you subtract, the answer is called the "difference."
No difference. In this context, highest and greatest mean the same thing.
If it is a good thing, it's the difference between an idea and an act. If it's a bad thing, it's the difference between a sin and a crime.
There is no difference, they're the same thing
It seems like there is a typo in your question. However, if you meant to ask about the difference between "information" and "data," data refers to raw facts and statistics, while information is processed data that has meaning and context.
They are the same thing
the difference between a pro and a con is that a pro is the good thing and a con is the bad thing about htte problem.
There are no difference between them they are the same thing.
The difference between you and the bicycle you ride on is that you are a living thing that breathes while the bicycle is a machine classified as a non living thing.
There is not difference; they mean the same thing.
No difference. They mean the same thing.
No difference. They mean the same thing.
there is a difference I just don't know it
There is no difference. Government and government are the same thing.