Yes. They just keep repeating forever
All repeating decimals are rational numbers. Not all rational numbers are repeating decimals.
There is an infinite amount of prime numbers all of which are odd numbers
They can. And if you include repeating 0s and repeating 9s, then all rational numbers can be written with infinitely long repeating digits.
yes, repeating decimals (those that have infinite - never ending - number of digits after the decimal point and these decimals show repeating pattern) are rational numbers, because they can be written as fractions.
there is no mode at all then
Unfortunately there is no specific answer as numbers are infinite. So basically one would state: Numbers = ∞ (Infinite)
All decimals that terminate, or end with a repeating set of digits are rational numbers. eg 1.234, 1.222..., 1.232323..., 1.23444..., 1.2343434... are all rational numbers.
Decimal representations of irrational numbers are non-terminating and non-repeating.
the set of odd numbers is infinite
All numbers have an infinite amount of multiples.
All its multiples, which is an infinite amount of numbers.
A real number that does not have a set repeating pattern and goes on forever. Pi is a great example of an irrational number, as all the numbers are random, and the value is infinite.