Найдите значение выражения: (63 9/20 : (-4,7) + 9,3) * (-4 1/5).

1) \(63\frac{9}{20} = \frac{63 \cdot 20 + 9}{20} = \frac{1269}{20}\) 2) \(\frac{1269}{20} : (-4.7) = \frac{1269}{20} : \left(-\frac{47}{10}\right) = \frac{1269}{20} \cdot \left(-\frac{10}{47}\right) = -\frac{12690}{940} = -\frac{27}{2} = -13.5\) 3) \(-13.5 + 9.3 = -4.2\) 4) \(-4\frac{1}{5} = -\frac{4 \cdot 5 + 1}{5} = -\frac{21}{5} = -4.2\) 5) \(-4.2 \cdot (-4.2) = 17.64\) Ответ: 17.64