\( 16 \begin{array}{l}\text { Alfonse and Melinda are taking a drive in a certain country. They know that a speed of } 100 \text { kilometers per hour is } \\ \text { approximately equal to } 62 \text { miles per hour. They are now driving on a road that has a speed limit of } 70 \text { kilometers per } \\ \text { hour. How many miles per hour is the speed limit? } \\ \text { The speed limit is approximately } \\ \text { (Round to the nearest whole numb as needed.) }\end{array} \) miles hour.

Use the ALEKS calculator to evaluate each expression. Round your answers to the nearest thousandth. Do not round any intermediate computations. \( \log \frac{4}{5}=\square \)

Evaluate each expression. (b) \( \log _{4} 64=\square \)

Use the ALEKS calculator to evaluate each expression. Round your answers to the nearest thousandth. Do not round any intermediate computations. \( \log \sqrt{6}=\square \)

Use the change-of-base rule to find an approximation for the logarithm below. \( \log _{6} 18 \)

Use the ALEKS calculator to evaluate each expression. Round your answers to the nearest thousandth. Do not round any intermediate computations. \( \log \frac{25}{3}=\square \)