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.
It is a rational number.
All whole numbers are rational.
7777 is a free number to get £20 free every day. I got 7,300 in a year!
No because 0.7777 can be expressed as a fraction in the form of 7777/10000
7777
It is a multiple of 7.
If the number keeps on going, then yes, yes it is.
If the number keeps on going, then yes, yes it is.
1-800-777-7777
0693518449
It's 8-7777
212-666-7777