8. а) 125% от 4\(\frac{4}{9}\);

8. a) $$4\frac{4}{9} \cdot 1,25 = \frac{4 \cdot 9 + 4}{9} \cdot \frac{125}{100} = \frac{40}{9} \cdot \frac{5}{4} = \frac{200}{36} = \frac{50}{9} = 5\frac{5}{9}$$

Ответ: $$5\frac{5}{9}$$