Two men could linish a job for \( 2 \frac{2}{3} \) hours. How long would the job take 3 ment finish?

11. Вычислите: \( \frac{10^{7}}{5^{6} \cdot 2^{7}} \)

Write the expression as a sum and/or difference of logarithms. Express powers as factors. \[ \log _{2}\left(\frac{x^{10}}{x-8}\right), x>8 \] \( \log _{2}\left(\frac{x^{10}}{x-8}\right)=\square \) (Simplify your answer.)

Simplify \( \frac{8}{\sqrt{6}+2} \)

Write the following expression as a sum and/or difference of logarithms. Express powers as factors. \[ \ln [e(x+5)] \] \( \ln [e(x+5)]=\square \) (Simplify your answer.)

Sarah and Eva took a road trip. Sarah drove two-fifths of the miles. If she drove 128 miles, how many total miles did they drive?