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.
8442 ÷ 21 = 402
It is a rational number. It can be written as a fraction.
positive 402. the absolute value makes any number positive, even if it already is. So the absolute value of -402 is 402. the absolute value of 402 is also 402.
yes
All multiples of 402, which is an infinite number.
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.
402 is divisible by 2.402 is divisible by 2.402 is divisible by 2.402 is divisible by 2.
402 Chevrolet
There is no such thing as a number that is both rational and irrational. By definition, every number is either rational or irrational.