Answer:
(a) -8
Step-by-step explanation:
[tex] \frac{2}{3} \times ( - 7) + \frac{2}{3} \times ( - 5)[/tex]
[tex] - \frac{2}{3} \times 7 + \frac{2}{3} \times ( - 5)[/tex]
[tex] - \frac{14}{3} + \frac{2}{3} \times ( - 5)[/tex]
[tex] \frac{ - 14}{3} - \frac{2}{3} \times 5[/tex]
[tex] - \frac{14}{3} - \frac{10}{3} [/tex]
[tex] = - 8[/tex]
