Question

3) 2-(-6)-8
4) -2 4/15:(-1,7)

Answer 1

$2 - ( - 6) - 8 = 2 + 6 - 8 = 8 - 8 = 0 \\ - 2 \frac{4}{15} \div ( - 1.7) = \frac{34}{15} \div \frac{17}{10} = \frac{34 \times 10}{15 \times 17} = \frac{2 \times 10}{15 \times 1} = \frac{2 \times 2}{3} = \frac{4}{3} = 1 \frac{1}{3}$