Question

решите)) плииииииииз​ дам 20баллов.

Answer 1

$\frac{ - 0.8 ( - 0.31) - 0.2 ( - 0.31)}{2.7 \times \frac{1}{3} \div ( - 0.003) } = \frac{( - 0.31)( - 1) ( - 0.003)}{0.9} = -\frac{0.0031}{0.1} = 0.031$