Because they can be expressed as fractions
Not only could they be, but they always are.
Because they can be expressed as a fraction
They are always rational numbers.
Yes, terminating decimals are always rational numbers.
Whole numbers are always rational
Not only could they be, but they always are.
A mixed number is a rational number. Mixed numbers are not a rational number but many of them.
In any case, being the product of two rational numbers, it will also be rational. It can either be another mixed number, or it may happen to be an integer.
They will always be rational numbers.
Because they can be expressed as a fraction
yes
They are always rational numbers.
Such a sum is always rational.
Yes, terminating decimals are always rational numbers.
Whole numbers are always rational
no
The product of two rational numbers is always a rational number.