It would be irrational, as it has non repeating digits to the right of the decimal.
Answer,
<u><em>-7</em></u>
Explanation,
<u><em>Hello! All we are doing here is simply subtraction :-)</em></u>
<em>-9 - 6 = -15</em>
<em>-15 - (-8) = -7</em>
<u><em>Hope This Helps :-)</em></u>
Do what’s in the parthenogenesis first
Then use PEMDAS