Ответ:

  1. \(\sqrt{0.64}=0.8\), так как \(0.8^2=0.64\).
  2. \(\sqrt[4]{81}=3\), так как \(3^4=81\).
  3. \(-15\frac{5}{8}=-\frac{125}{8}\), поэтому \(\sqrt[3]{-\frac{125}{8}}=-\frac{5}{2}\).
  4. \(0.5\cdot\sqrt[7]{128}=0.5\cdot2=1\).
  5. \(\sqrt[4]{\frac{16}{625}}+\sqrt[3]{-\frac18}=\frac25-\frac12=-\frac1{10}\).
  6. \((2\sqrt[3]{10})^3=2^3\cdot10=80\).
  7. \(\frac{(2\sqrt3)^2}{12}=\frac{12}{12}=1\).
  8. \(\sqrt[5]{(-7)^5}=-7\).
  9. \(\sqrt[4]{625}\cdot\sqrt[3]{-27}=5\cdot(-3)=-15\).
  10. \(\sqrt[5]{1}\cdot\sqrt[5]{0.00032}=1\cdot0.2=0.2\).
  11. \(\sqrt[5]{16}\cdot\sqrt[5]{2}=\sqrt[5]{32}=2\).
  12. \(\sqrt[4]{6}\cdot\sqrt[4]{8}\cdot\sqrt[4]{27}=\sqrt[4]{1296}=6\).
  13. \(\frac{\sqrt[3]{320}}{2\sqrt[3]{5}}=\frac{\sqrt[3]{64\cdot5}}{2\sqrt[3]{5}}=\frac{4\sqrt[3]{5}}{2\sqrt[3]{5}}=2\).