Step-by-step explanation:
[tex] {( - \frac{1}{3} + \frac{3}{5} ( - \frac{1}{2} ) + 1)}^{2} = \\ ( { - \frac{1}{3} - \frac{3}{10} + 1 })^{2} = \\ ( - \frac{10}{30} - \frac{9}{30} + \frac{30}{30} )^{2} = \\ ({ \frac{11}{30} )}^{2} = \frac{121}{900} [/tex]
[tex] - ( - 1 \frac{4}{5} \div 0.3(1.2)) - \frac{5}{6} [/tex]
[tex] - ( - \frac{9}{5} \div \frac{3}{10} ( \frac{6}{5} )) - \frac{5}{6} = \\ - ( - \frac{9}{5} \times \frac{10}{3} \times \frac{6}{5} ) - \frac{5}{6} = \\ - ( - \frac{540}{75} ) - \frac{5}{6} = \\ \frac{36}{5} - \frac{5}{6} = \frac{216}{30} - \frac{25}{30} = \frac{191}{30} [/tex]
