So, the first thing we need to know is what is what.
So, A natural number is a whole number
A whole number is an integer
and An integer is a rational number.
Now, since there is a terminating decimal (a decimal that does not go on forever) we know it is a rational number.
Since there is a decimal, it cannot be an integer, therefore
It is a rational number
Assuming you are referring to simple interest not compound that that it is annual you would gain $100 putting you at $600
75.7 I think that is the answer
If you divide 67 by 50 you are left with 1.34 if you turn that decimal into a percent it turns into 134%
