If it stops there as 0.7 then it is a terminating decimal number
The number you've written in the question is a terminating number.
An irrational number is a number that has no definite end and a terminating number is a number that has a definite end. So this means that a decimal that is terminating cannot be irrational.
A terminating decimal is a rational number. A non-terminating, repeating decimal is a rational number. A non-terminating, non-repeating decimal is an irrational number.
Yes
no
It is non-terminating decimal and therefore it is an irrational number
An irrational number is not a terminating decimal and it also can't be expressed as a fraction.
The decimal expansion of an irrational number is non terminating and non recurring
No.
Any number with terminating decimals (a finite number of decimal digits) is rational. (If it is non-terminating, but periodic, it is also rational.)
yes