Answer:
[tex] \bf \implies \: \: \frac{35}{2} \: \: \: \: \: \: \: \: \: (in \: decimal \: = 17.5)[/tex]
Step-by-step explanation:
[tex] \large\bf \frac{3}{ - 6} + \frac{ {12}^{2} }{8}[/tex]
[tex] \large\bf{ = \blue{ \frac{ - 1}{2}} + \frac{ {12}^{2} }{8}}[/tex]
[tex] \large\bf{ = { \frac{ - 1}{2}} + \frac{ \blue{144} }{8}}[/tex]
[tex] \large\bf{ = { \frac{ - 1}{2}} + \blue{ 18}}[/tex]
[tex] \large\bf{ = \blue { \frac{35}{2}}}[/tex]