Yes.
yes
Yes.
yes
It must be a generalised rational number. Otherwise, if you select a rational number to multiply, then you will only prove it for that number.
Yes. Any rational number divided by another rational number is also rational.
222222674025
49,382,617,284
The answer to 100000+ 222222 is 322222
If you mean: 25*55 in exponents then the number is 100,000
It is still 240000.
It is a rational number. It can be written as a fraction.
yes
222222
Is 12.05 a rational number or irrational number?
1.96 is a rational number
It is a rational number, as it can be written as a fraction.
Yes, the sum is always rational.