104. -\(\frac{4}{5} \cdot (0,75 - \frac{1}{3}) + (-\frac{1}{2})^3 \cdot 8\)

Решение:

1. \( 0,75 - \frac{1}{3} = \frac{3}{4} - \frac{1}{3} = \frac{9}{12} - \frac{4}{12} = \frac{5}{12} \)
2. \( -\frac{4}{5} \cdot \frac{5}{12} = -\frac{4}{12} = -\frac{1}{3} \)
3. \( (-\frac{1}{2})^3 = -\frac{1}{8} \)
4. \( -\frac{1}{8} \cdot 8 = -1 \)
5. \( -\frac{1}{3} + (-1) = -\frac{1}{3} - 1 = -\frac{1}{3} - \frac{3}{3} = -\frac{4}{3} \)

Ответ: -\(\frac{4}{3}\).