Find the greatest common divisor (also called greatest common factor) and least common multiple of 18 and 12. \( \operatorname{gcd}(18,12)= \) \( \operatorname{lcm}(18,12)=36 \) Question Help: \( \square \) Video

Use a calculator to find the following. Round your answers to two decimal places or enter DNE if the answer is not a real number. a) \( \frac{15.2+5}{10.4-13.1} \) b) \( \frac{(10.8+8.4)^{3}}{\sqrt{12.7-8.1}} \) -7.48 \( 6.3 \cdot 24.4 \)

19. Connor cuts a board with a length of 78.5 centimeters into four equal pieces. Which is the best estimate for the length of each piece?

Leveled Practice in 1-4, find the unit rate. \begin{tabular}{l|l|l|l|}\hline Miles & \( \frac{1}{5} \) & \( \square \) \\ \hline Hours & \( \frac{1}{65} \) & \( \square \) \\ \hline\end{tabular}

Evaluate \( 2^{9} \)

Use a calculator to find the following. Round your answers to two decimal places or enter DNE if the answer is not a real number. a) \( \frac{15.2+5}{10.4-13.1} \)