Hello!
[tex]-15*(-\frac{-1}{2} )[/tex]
[tex](\frac{-15}{1}) (\frac{-1}{2})[/tex]
[tex]\frac{(-15)(-1)}{(1)(2)}[/tex]
[tex]=\frac{15}{2}[/tex]
You can also round up to the nearest tenths is 7.5 to 8.0
Hope this helps! Thank you for posting your question at here on Brainly.
-Charlie